Demolition & Excavation English

TABLE OF CONTENTS

A- DEMOLITION

1.0 DESCRIPTION OF WORK

2.0 SUBMITTALS

3.0 HEALTH AND SAFETY CONSIDERATIONS

4.0 GENERAL REQUIREMENTS

5.0 DUST CONTROL

6.0 PROTECTION

7.0 PRESERVATION OF PROPERTY

8.0 EXISTING FACILITIES TO BE REMOVED

9.0 DISPOSAL OF MATERIAL

10.0 SITE CLEANUP

11.0 HAZARDOUS WASTE MANAGEMENT

B- EXCAVATION

12.0 DISCLAIMER

13.0 SCOPE

14.0 PROVISION, FOR MOVEMENT OF PERSONS; IN, AROUND AND ACROSS AN EXCAVATION

15.0 ESTABLISHING AN AREA FOR PLACEMENT OF EXCAVATED MATERIALS, PLANT AND

OTHER LOADS

16.0 TRAFFIC MANAGEMENT

17.0 LOCATION OF UNDERGROUND SERVICES AND OTHER STRUCTURES

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18.0 FACTORS TO CONSIDER TO AVOID CAVE-IN IF, AT A WORKPLACE

19.0 SPECIAL PRECAUTIONS

20.0 SAFE SLOPES

21.0 STABILITY OF AFFECTED BUILDING OR STRUCTURES

C- TERMS AND CONDITION

D- BOQ

E- APPENDIX, A.

F- APPENDIX, B.

G- WORKS PERMIT

H- SCOPE OF WORKS

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A. DEMOLITION

1.0 DESCRIPTION OF WORK

Contractor shall perform the demolition work, which includes, but is not limited to dismantling, removal

and salvage or disposal of existing structures, foundations, man-holes, underground utilities, roads and

drainage structures as indicated on the contract drawings.

1.1 WORK INCLUDES

Demolition of structures, buildings, structures, foundations, roads, drainage, and above ground

improvements.

Demolition of utilities, manholes, underground utilities

Documentation of salvageable material

Site cleanup

Hazardous waste, Identification, removal, hauling and disposal

Use of explosives for demolition

1.2 REFERENCES

The referred codes and standards are intended to provide an acceptable level of quality for materials,

products and workmanship. In case of conflict between these Standards and the text of this

specification, the specification text shall govern. The latest revision of the referred codes and standards

shall be used wherever applicable. In case of conflict, the contractor shall propose equipment, materials

and processes conforming to one group of codes and standards. IBC, (International Building Code).

Further relevant references may be obtained from the Related Sections.

2.0 SUBMITTALS

2.1 The Contractor shall submit the procedure proposed for the accomplishment of demolition and removal

work for approval before work is started. The procedure shall include a detailed description of methods

and equipment to be used for each operation and sequence of operations.

2.2 If hazardous materials like asbestos, lead and lead-based paint, PCB’s, mercury etc. are encountered

in the building to be demolished, the contractor shall prepare a detailed Work Procedure comprising of

the following information and submit for approval:

2.2.1 Methods, equipment and sequence of operations for the removal, handling, storing, hauling and

disposal of the hazardous wastes.

2.2.2 Procedures to limit air emissions.

2.2.3 Precautionary measures for the protection of personnel, building occupants, and environment.

2.2.4 Evidence of previous work experience of similar jobs within the last 5 years including project locations

and main Contractor contact details.

2.3 If controlled explosive method is used for the demolition of building structures, the contractor shall

prepare a detailed Safe Work Plan containing the following information and submit to KFMC for

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approval at least 30 days prior to delivery or use of explosives in compliance with the Ministry of

Interiors Regulations.

2.3.1 Methods and materials to be used.

2.3.2 Means to protect adjacent structures, equipment, material, and underground utilities from damage,

including protection from projectiles.

2.3.3 Methods and materials to control fugitive emissions.

2.3.4 Contingency plan for detonation failure.

2.3.5 Methods and materials to transport and store explosives.

2.3.6 Proof of a valid blaster’s license issued by public security officials.

2.3.7 Blasting crew’s experience in the safe use of explosive materials.

2.3.8 Evidence of previous work experience using controlled explosives to take down structures similar in

height, type of construction and proximity to improvements within the last 3 years including project

locations and main contractor contact details.

2.3.9 Copies or proof of all applicable permits and licenses.

2.4 Contractor shall not start any demolition work until procedures authorizing such work, have been

approved by KFMC, in writing.

3.0 HEALTH AND SAFETY CONSIDERATIONS:

3.1 All works undertaken in relation to this Specification are to be completed in full accordance with the

respective health and safety requirements established by the following:

3.1.1 Kingdom of Saudi Arabia

3.1.2 Legislation, Regulation, Standards and Codes.

3.1.3 Standards, Contractual Conditions, and Health and Safety Systems, as defined under IBC.

3.1.4 Health and Safety Standards and Systems as accepted by KFMC

3.2 In the absence of any of the above, best accepted industry practice shall be employed throughout.

4.0 GENERAL REQUIREMENTS:

4.1 All materials resulting from demolition work, except as indicated or specified otherwise, shall be

removed transported, salvaged and stored or disposed of by the contractor at places shown on the

plans, as specified or as approved.

4.2 Trash and debris shall be removed daily, unless otherwise directed, and shall not be allowed to

accumulate either inside or outside the building or the site.

4.3 Trenches, holes, depressions and pits formed as a result of demolition operations shall be protected

and indicated by suitable indicative/ warning signage.

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5.0 DUST CONTROL

5.1 The Contractor shall control the dust resulting from demolition activities to prevent the spread of dust to

occupy portions of the building site and to avoid creation of nuisance in the surrounding area as follows:

5.1.1 Prevent spread of flying particles and dust, use water sprinkling, temporary enclosures or other suitable

methods for dust suppression.

5.1.2 For multi-story buildings, provide enclosed dust chutes with controlled gates from each floor to carry

debris to truck beds and governs flow of material into truck.

5.1.3 Do not use water if it results in or creates hazardous or objectionable conditions such as flooding,

erosion, sedimentation or pollution.

5.1.4 Inspect all vehicles for dirt prior to their departure from the site and remove dirt, soil and rubble likely to

be dislodged from the vehicles during transit.

5.1.5 Load the trucks in a manner that prevents the dropping of soil or debris on the streets. This includes

securing and covering transport equipment and loose materials to ensure that dust is not generated

during transit.

6.0 PROTECTION

6.1 The Contractor shall take the following precautionary measures before and during the demolition

operations:

6.1.1 Drain, purge or remove, collect and dispose of chemicals, gases, explosives, acids, flammables or

other dangerous materials before proceeding with demolition operations.

6.1.2 Perform demolition in such a manner as to eliminate hazards to persons and property to minimize

interference with use of adjacent areas, utilities and structures or interruption of use of such utilities;

and to provide free passage to and from such areas of adjacent structures.

6.1.3 Provide safeguards, including warning signs, barricades, temporary fences, warning lights and other

similar items that are required for protection of all personnel during demolition and removal operations.

6.1.4 Protect the existing work to remain in place by temporary covers, shoring, bracing and supports. Repair

such items that are damaged during performance of the work or replace with new material. Do not

overload structural elements. Provide new supports or reinforcement for existing construction which is

weakened by demolition or removal work.

6.1.5 Provide interior and exterior shoring, bracing or supports to prevent movement, settlement or

uncontrolled collapse of structures to be demolished. Do not allow worker or public access within range

of potential collapse of unstable structures.

6.1.6 Conduct operations to minimize obstruction of public and private entrances and exits. Do not obstruct

required exits at any time and protect persons using entrances and exits from removal operations.

6.1.7 Maintain fences, barricades, temporary fences, warning lights, and other similar items around exposed

excavations until such excavations have been completely filled.

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6.1.8 Protect the building material and equipment from inclement conditions at all times. Where removal of

existing roof is necessary to accomplish work, keep the necessary material and workmen in readiness

at all times to provide adequate and approved temporary covering of exposed areas.

6.1.9 While demolishing multi-storey buildings, maintain at least one stairway in each structure in usable

condition to the highest remaining floor. Keep stairway free of obstructions and debris until that level of

structure has been removed.

6.1.10 Protect and maintain all existing utilities to remain from damage in the proximity of the facilities to be

demolished.

6.1.11 Should unanticipated utilities be encountered during excavation, cease work and consult the client

immediately. Resume work only after Agreement has been reached as required by the general

conditions. Repair damaged utilities to satisfaction of the owner.

6.1.12 Protect the nearby existing equipment such as control panels and others from dust caused by

demolition activities by covering, drop-curtains and other similar methods.

6.1.13 Where a cutting torch or other equipment that might cause a fire is used, provide and maintain fire

extinguishers nearby ready for immediate use. Instruct all possible users in use of firefighting

equipment.

6.1.14 Keep hydrants clear and accessible at all times. Prohibit debris from accumulating within a radius of

4500 mm of fire hydrants.

6.1.15 Ensure that the demolition operations do not obstruct the free and convenient approach to and use of

fire alarm box, utility box, catch basin or manhole etc.

7.0 PRESERVATION OF PROPERTY

7.1 The contractor shall protect the existing facilities from damage which are designated or allowed to

remain. Facilities which are damaged or destroyed as a result of the demolition operations shall be

repaired or replaced at no cost to the client.

7.2 The contractor shall not begin demolition operations until vegetation to be relocated has been removed

and specified measures have been taken to protect vegetation to remain.

7.3 The contractor shall repair or replace the vegetation which is damaged or destroyed during the

demolition operations at no cost to the client.

8.0 EXISTING FACILITIES TO BE REMOVED

8.1 Demolition of buildings and structures

The Contractor shall demolish buildings and structures completely and remove from site, taking into

consideration the following:

8.1.1 Locate demolition equipment throughout the building and structure. Remove debris and materials so as

not to impose excessive loads on the supporting walls, floors or framing.

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8.1.2 Proceed with demolition in systematic manner, from top of the structure to the ground. Complete

demolition work above each floor before disturbing supporting members on lower levels.

8.1.3 Remove structural framing members and lower to ground by methods suitable to avoid free fall and to

prevent ground impact or dust generation.

8.1.4 Small buildings and structures may be demolished intact when acceptable to the client.

8.2 Partial Demolition of Structures

8.2.1 In case of partial demolition, the contractor shall take all necessary measures to protect the structural

integrity of the remaining structures.

8.2.2 The contractor shall remove the existing structures to the extent indicated on the contract drawings.

8.3 Windows, Doors and Framing Members

8.3.1 The contractor shall remove all windows in one piece and place them in appropriate containers.

8.3.2 The contractor shall remove all doors (wood or steel) and place them in appropriate containers.

8.3.3 Structural steel, cast iron and heavy timber framing members shall be removed individually and

carefully lowered.

8.4 Demolition of Roofing

Where removal of roofing is required to affect the connections with new flashing, the contractor shall

remove existing materials along straight lines.

Roofing (and insulation) shall be removed without damaging the substrate.

8.5 Demolition of Concrete and Masonry

The contractor shall remove masonry units in small sections so as to prevent damage to surfaces to

remain and to facilitate the installation of new work.

Avoid free fall of these units from higher locations to prevent ground impact or dust generation.

8.6 Demolition of Above-Ground Improvements

The contractor shall remove above-grade improvements such as posts, poles, fences, walls and other

work necessary to permit new construction.

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8.7 Below Grade Demolition

The contractor shall demolish and remove footings, foundation walls, and below grade construction and

concrete slabs on grade to a depth which will not interfere with new construction, but not less than 300

mm below existing ground surface or future ground surface, whichever is lower.

8.8 Demolition of Existing Pavements.

The contractor shall saw cut and remove the existing pavements designated for removal to the limits

and depths indicated on the Contract Drawings.

8.9 Demolition of Existing Utilities

8.9.1 The contractor shall locate and mark utilities to remain by using highly visible tags or flags, with

identification of utility type; protect from damage due to subsequent construction, using substantial

barricades if necessary.

8.9.2 The contractor shall remove piping, valves, meters, equipment, supports and foundations of

disconnected and abandoned utilities.

8.9.3 The contractor shall prepare building demolition areas by disconnecting and capping utilities outside the

demolition zone; identify and mark utilities to be subsequently reconnected, in same manner as other

utilities to remain.

8.9.4 The contractor shall remove existing utilities to the extent indicated on the contract drawings and

terminate in a manner and at a time satisfactory to the client. If affected, meters and related equipment

shall be removed and stored for reuse in accordance with the instructions from the client. If utility lines

are encountered which are not indicated on the contract drawings, obtain direction in disposal of such

services.

9.0 DISPOSITION OF MATERIAL

Reuse of material and equipment. Material and equipment to be reused or relocated shall be carefully

removed and stored by the contractor to prevent damage.

10.0 SITE CLEANUP

10.1 Debris and Rubbish Control

10.1.1 Promptly dispose of demolished materials. Demolished material shall not be allowed to accumulate on

site.

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10.1.2 Remove and transport debris and rubbish in a manner that will prevent spillage on streets and adjacent

areas.

10.1.3 Burning of removed material from the demolished structures shall not be permitted on site.

10.1.4 Leave site clean, neat, and orderly and in condition to begin new construction.

10.1.5 Remove all tools, equipment and materials from the demolition site upon completion of work.

10.2 Regulations

The contractor shall comply with the client’s regulations and international building code regarding

hauling and disposal of materials.

11.0 HAZARDOUS WASTE MANAGEMENT

11.1 General

The wastes generated during the demolition operations, which may cause particular health, safety, or

environmental threat or concern is known as hazardous waste.

These include asbestos containing materials (e.g., floor tile, plumbing insulation, siding and roofing);

materials with lead based paint coatings (e.g. siding, walls, furniture, and cabinetry); lighting wastes

(e.g., mercury containing lamps, PCB containing ballast); electrical components (e.g. oil containing

switches and transformers); and appliances and other equipment (e.g. refrigerators and air conditioning

compressors containing refrigerants and oils).

11.2 Asbestos

Asbestos is the name for a group of natural minerals that separate into strong and fine fibers of size

ranging from 0.1 to 10 micrometer.

11.2.1 These fibers are heat-resistant and extremely durable. Asbestos is used in many applications for its fire

resistance, noise insulation and electrical insulation properties and is generally of two forms; friable and

no friable:

11.2.2 Friable asbestos

It can be crumbled, pulverized or reduced to a powder by hand pressure when dry and is the most

dangerous form.

11.2.3 It has little structural strength and its fibers are readily released upon breaking.

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11.2.4 Common types of asbestos containing materials may include pipe or thermal system insulation,

sprayed-on insulation, some wall, ceiling or acoustical plasters some ceiling tiles, thermal protective

coating, etc.

11.3 Non-friable asbestos

11.3.1 Non-friable materials may become friable during grinding, cutting, burning, crushing, and similar

operations during demolition activities and may generate and release asbestos fibers.

11.3.2 Hence non-friable asbestos that is damaged to the extent that it can be crumbled or reduced to a

powder by hand pressure when dry must be handled and packed like friable asbestos wastes.

11.3.3 Resilient floor tiles, asphalts, mastics, and transit roof shingles, sliding, and pipe are considered non-

friable forms of asbestos, unless they are damaged during demolishing activities.

11.3.4 Inhalation of asbestos fibers may cause cancer, so most important thing in handling, transporting, or

disposing of asbestos is to do so in a way that prevents airborne release of fibers or dust.

11.4 Identification and Handling of Hazardous Wastes

11.4.1 The contractor shall hire the services of a licensed inspector, approved by the client to determine the

presence or absence of hazardous materials like asbestos, lead-based paint, mercury-containing lights,

PCB-containing materials etc., in the structure intended to be demolished.

11.4.2 All locations and materials containing hazardous wastes on site shall be identified by the licensed

inspector.

11.4.3 The handling of the hazardous waste shall be carried out in accordance with the IBC Regulations.

11.4.4 Hazardous materials shall be removed from the structure before demolition operations by qualified

personnel using appropriate health and safety procedures in accordance with local and client

environmental regulations.

11.4.5 While removing hazardous materials, like asbestos, the contractor shall undertake the following

precautions:

a) Keep at least one licensed project supervisor, approved by the client, on-site during the removal of

the hazardous material.

b) Maintain on-site necessary equipment, chemicals and other material to cope with real and probable

emergencies associated with the hazardous materials.

c) Do not use high-speed abrasive disc saws that do not have HEPA (high efficiency particulate air)

filtered exhaust air or ventilators.

d) Do not use compressed air to remove asbestos material, waste or dust.

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e) Do not dry sweep or shovel asbestos containing materials.

f) Do not burn the hazardous waste.

g) Carefully lower the asbestos containing material to ground level and do not drop, throw, slide, or

disturb asbestos.

h) Seal all asbestos containing materials in leak-tight wrapping or contained after adequately wetting

the material and subsequently label them appropriately.

i) Store asbestos containing material and other hazardous wastes in a secure area (e.g. locked

container, room, truck) where appropriate danger signs are posted, or have a licensed worker

remain on site if the area is left unsecured.

j) Control the access to a hazardous material storage area to prevent entry of unauthorized persons or

vehicles.

k) Immediately notify the client of any emergency involving the hazard materials stored at the

facility.

l) Conduct air monitoring to assure the safety of the personnel on site.

m) Use a HEPA filter vacuum to collect all visible asbestos debris after removal.

n) Have a licensed supervisor certify in writing that final inspection was completed and there was no

visible suspect asbestos containing debris.

11.5 Transportation of Hazardous Waste

11.5.1 The transportation of the hazardous waste shall be carried out in accordance with the IBC

Environmental Regulations.

11.5.2 The transporters handling the hazardous waste shall be approved by client.

11.5.3 The transporter shall carry a manifest, prepared by the Contractor and containing, as minimum, the

following information:

a) The company name, address, telephone number and contact name of the contractor.

b) The company name, address, telephone number and contact name of the transporter.

c) The total quantity of waste being transported, and the number and type of containers being transported

to the designated disposal facility.

11.5.4 The contractor shall sign the manifest certifying that the waste is property classified, packaged, marked

and labeled according to the requirements of the IBC environmental regulations.

11.5.5 The waste transporter shall sign on the manifest acknowledging acceptance of the waste by the

transporter.

11.5.6 The contractor shall retain a copy of the original manifest and the returned copy from the designated

disposal facility for a period of time not less than 3 years from the date of transportation of the waste

from the site.

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11.5.7 The contractor shall ensure that all wastes are placed in waste compatible containers that properly

contain the waste to prevent any spillage or leakage during transportation from the site.

11.5.8 The contractor shall clearly label all hazardous waste containers with the following minimum

information regarding the waste to be transported:

I. Hazardous Waste.

II. Date of waste generation.

III. Identification of the type of waste on the individual container. The identification system shall be

similar to that adopted for the waste manifest.

11.5.9 All motor vehicles transporting hazardous wastes shall carry placards in accordance with the United

Nations chemical hazard classification system for the transport of dangerous goods.

11.5.10 All vehicles and containers used to transport waste shall be operated and maintained such that the

spillage of waste is prevented while in transit.

11.5.11 Containers of hazardous waste shall be secured during transportation to prevent movement or

dislodgment under normal transportation conditions.

11.5.12 Vehicles and container systems for transportation of hazardous wastes shall be compatible with the

specific materials being transported.

11.5.13 In the event of an accident, spillage or discharge involving hazardous waste in transit and where the

integrity of the container is compromised, transfer of the waste material shall occur by using collection

methods and containers compatible with the hazardous material being collected. Any transfer shall be

Documented on the manifest document accompanying the waste.

11.5.14 The transporter shall deliver the hazardous waste to the designated disposal facility within 48 hours of

acceptance of the waste material from the site.

11.5.15 Upon delivery of the waste to the designated disposal facility the transporter shall obtain the signature

of the responsible individual at the disposal facility on the manifest. The disposal facility shall assume

responsibility for the waste.

11.5.16 Any disposal facility designated on the manifest for acceptance of hazardous waste shall adhere to the

waste manifest procedures as follows:

a) The disposer shall certify that the wastes as delivered are consistent with the description of the

accompanying manifest documentation.

b) Any discrepancy found between the wastes described on the manifest and that received shall be noted

on the manifest documentation.

11.6 Disposal of hazardous waste

11.6.1 The disposal of the hazardous waste shall be carried out in accordance with the IBC Environmental

Regulations.

11.6.2 All hazardous wastes shall be disposed of at Saudi Arabian approved hazardous waste disposal

facilities.

11.6.3 Operators of hazardous waste disposal facilities shall follow standards for the selection of the most

appropriate disposal techniques for hazardous waste in their control in accordance with the regulations,

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methodologies and techniques established by the U.S. EPA in Title 40 CFR Parts 261, 264, 266, 268

and 270.

11.6.4 Small containers of compatible hazardous waste in over-pack drums (laboratory packs) may be placed

in a landfill without pretreatment if the following requirements are met:

a) The waste shall be packaged in non-leaking containers, which are of a material that will not; react

dangerously with, be decomposed by or ignited by the waste.

b) The containers shall be tightly sealed and over-packed in a compatible drum.

c) The drum shall be provided with sufficient quantity of absorbent material to completely absorb all the

liquid contents of the inside containers.

d) The absorbent material used shall be of a material that will not; react dangerously with, be decomposed

by or ignited by the waste.

11.6.5 A label on the outer container or over-pack shall clearly identify each hazardous substance within the

container.

11.6.6 Landfill disposal of hazardous wastes shall only take place at a Class 1 disposal site which has, as a

minimum the following characteristics:

a) Hazardous waste is isolated from the ground or groundwater by means of a double liner system.

b) Surface water runoff is prevented from entering the landfill cell.

c) Leach ate and runoff water from the landfill cells are collected and treated before being allowed to leave

the boundary limits of the landfill area.

d) The disposal site has impermeable and stable foundations and embankments.

e) The site is fenced and designated as off limits to the public.

f) Each landfill cell is equipped with leachate monitoring wells.

g) The site is surrounded with a minimum of one up-gradient and three down-gradient groundwater

monitoring boreholes.

11.6.7 All Class 1 landfill sites shall be operated such that:

a) Wastes deposited in the landfill are compatible with the landfill liner.

b) Only physically, chemically and biologically compatible wastes are deposited in the same landfill cell.

c) Adequate equipment is to be maintained on-site to control fire, dust and odor problems.

d) Operating procedures including monitoring, safety and emergency procedures approved by the client

are followed.

11.7 DEMOLITION BY EXPLOSIVES

General Requirements

11.7.1 The Contractor shall perform all blasting operations, including the storage and handling of explosives

and blasting agents for demolition activities, strictly in accordance with the applicable provisions of

these General Specifications and all the ministry of interior regulations.

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11.7.2 The Contractor shall designate a qualified and experienced blaster-in-charge, approved by the Client,

who shall be responsible for acquisition, transportation, distribution, security, safety and use of all

explosive materials and other associated activities.

11.7.3 The Contractor shall be well acquainted with the Ministry of Interior laws governing the purchase,

transportation, storage and use of explosives, blasting agents and detonators.

11.7.4 Date codes shall be clearly marked on the blasting products. All explosives and other blasting agents

must be used within the expiry date to insure the proper utilization of their rated energy.

11.8 Product Specifications

11.8.1 All products shall be strictly checked for their compliance with the manufacturer’s specifications at the

time of blasting to insure that the desired energy rating is obtained.

11.8.2 All explosive manufacturers shall have their internal quality control system for inspection, sampling and

testing of their products, in compliance with the ministry of Interior requirements.

11.9 Traffic Interruption and Time Constraints

11.9.1 In case the blasting operations require the interruption of traffic on the adjacent roads, the Contractor

shall secure the approval from the Client.

11.9.2 Blasting operations shall be restricted to the times permitted by the client.

11.10 Safety Measures

11.10.1 The contractor shall take all necessary measures to insure the protection of persons, property and the

work, including the trees, shrubbery, pole lines, landscape features and all other structures of aesthetic,

historic or archaeological significance. Should any damage occur, the contractor shall make restoration,

as required by the client, at his own expense?

11.10.2 The Contractor shall take all measures to limit the noise level, flying dust and debris during blasting

operations.

11.10.3 The client shall have the authority to halt the blasting operations at anytime, if the safety of the public

deemed to be jeopardized during the blasting operations.

11.11 Survey for Misfires Explosives and Their Rectification

11.11.1 The Contractor and Public Security officer shall survey the structure for a minimum of 5 minutes

following the explosion to verify detonation of all charges. This inspection shall be conducted

immediately following the detonation sequence and prior to the commencement of any further work to

Insure that no misfire has occurred.

11.11.2 If the visual inspection indicates that complete detonation of all charges did not take place, the Blaster

shall attempt to rectify the misfire in a safe manner. If the problem persists; a consultant or an explosive

company’s skilled representative shall be called to rectify the problem.

11.11.3 Certification to Allow Entry

Prior to allowing entry to the building and the recommencement of any work, the contractor shall certify,

in writing, to the Client that all charges have been detonated.

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11.11.4 Lightning Protection

If the lightning detector indicates a blasting hazard at site, the contractor shall take the following

precautionary measures:

a) Terminate the blasting operations and return the unused explosives to the day storage area.

b) Inform the client accordingly.

c) If the loaded blast-holes are liable to pose a hazard to traffic if detonated, roads shall be closed until the

lightning hazard has dispelled.

d) Exclude all personnel from the blasting area.

e) When the hazard dissipates, inform the client about the resumption of the blasting operations.

11.11.5 Pre-Blast and Post-Blast Inspections of the Adjacent Property

a) The contractor shall conduct a pre-blast condition survey of the nearby buildings, structures or utilities,

which may be potentially at risk during the blasting operations and record the existing cracks and

damage.

b) The pre-blast survey record shall be submitted to the client for review. The occupants of the local

buildings shall be informed by the contractor prior to the commencement of the blasting.

c) After blasting, re-inspection shall be conducted; and the damage caused by the blasting shall be

compensated by the Contractor.

11.11.6 Control of Vibrations

The contractor shall take necessary measures to control the blast induced vibrations that may damage

the nearby buildings, structures or utilities.

a) The ground vibrations shall be controlled by the use of properly designed delay sequences and

allowable charge weights per delay. Allowable charge weights per delay shall be based on vibration

levels

Which will not cause damage and shall be established by carrying out?

Trial blasts and measuring vibration levels.

b) The contractor shall employ a qualified and approved vibration specialist, who shall monitor each blast

with an approved seismograph, capable of recording three dimensional particle velocities and located,

as approved, between the blast area and the nearest structure subject to blast damage. Data recorded

for each shot shall be submitted to the client prior to the next blast and shall include the following:

i. Identification of the instrument used.

ii. Name of the qualified observer and interpreter.

iii. Distance and direction of recording station from blast area.

iv. Type of ground at receiving station and material on which the instrument is sifting.

v. Maximum particle velocity in each component.

vi. A dated and signed copy of seismograph readings record.

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c) In order to establish the decay of air overpressure and ground vibrations with distance from the blast,

mandatory blast monitoring of every test blast will be required within the distances of structures shown

in Table 3B for the type of foundation materials involved. If the data indicates that the peak particle

velocity limitations are exceeding, necessary measures, such as reducing the size of charge or

increasing the number of delay intervals shall be taken to reduce particle velocity or overpressure to the

specified levels.

11.11.7 Record-keeping

The contractor shall maintain and update daily record of transactions at each storage magazine,

including class and quantities received and issued, as well as, the remaining on hand at the end of

each day. Any loss or theft of, explosives shall be immediately reported to the nearest Department of

the interior office and the client.

11.11.8 Post-Blast Cleanup

The Contractor shall be responsible for cleanup of all debris immediately after blasting.

11.11.9 Removal of Explosive Material

Any surplus explosive material shall be legally removed prior to allowing personnel to enter the building

for purposes other than to survey the damage and to look for misfired explosives.

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B EXCAVATION 5

The basic idea of good engineering practice should be used by all persons involved in any aspect

of work related to excavation, including designers, manufacturers, suppliers, employers,

contractors, self-employed persons, managers, supervisors, persons in control of workplaces,

employees and safety and health representatives to assist them.

12.0 DISCLAIMER

12.0.1 Information in this document is provided to assist the contractor in meeting his contractual

obligations and the internationally recognized standards of occupational safety and health.

12.0.2 While information is correct at the time of issuance, contractor should check and verify any

legislation that is in force at the time of use.

12.0.3 Changes in law after this document is issued may impact the overall contract. This information is

provided as a service to the contractor.

12.0.4 The information and advice provided is made available in good faith and is deemed accurate at the

time of issuance.

12.1 Introduction

12.1.1 Excavation is regarded as one of the most hazardous construction operations. Excavation failure

occurs very quickly, giving a worker virtually no time to escape, especially if the collapse is

extensive and the excavation is a trench.

12.1.2 Normally, a slab of earth collapses off the trench face under its own weight and breaks against the

opposite wall of the excavation, burying and crushing any person in its path. This can result in

death by suffocation or internal injuries.

12.1.3 This document provides guidelines for establishing and maintaining a safe working environment

wherever excavation is carried out. The contractor should be aware of his obligations to protect his

workers, the client and members of the public, during the course of excavation.

12.1.4 This document provides practical advice about the safe practices required in carrying out all forms

of excavations. Advice is given on the provision of protective systems to prevent cave-ins, and to

protect employees when cave-ins occur, and to protect employees from material that could fall or

roll from an excavated face or from the collapse of adjacent structures.

12.1.5 Protective systems include support systems (steel, aluminum and timber), battering, benching, and

shield systems. The code is based on current knowledge and construction methods. However, it is

not intended to exclude other techniques that can be shown to meet the requirements of providing

a safe workplace.

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12.1.6 Examination of site conditions by a competent person is necessary to determine safe slopes for

excavations. Safe slopes depend on the height of the face, soil type and geological conditions, the

moisture content of the soil and any surcharge loads.

12.1.7 Soil moisture content and geological conditions may change as excavation progresses, causing

safe slopes to become hazardous.

13.0 SCOPE

13.0.1 This document provides information to assist with the planning, preparation and conduct of work

practices, including the installation or provision of protective systems to protect employees from

earth collapse or ground movement while working in and around excavations.

13.0.2 It also includes information on support systems, battering and benching and shield systems.

13.1 Pre-planning and co-ordination

13.1.1 Preplanning and co-ordination between those involved in excavation activities is essential to

ensure the safety of all those involved and members of the public.

13.1.2 Before any excavation work commences, the exact location of certain underground services needs

to be established. These services are electrical power cables, gas pipes, sewer pipes and water

pipes.

13.1.3 The exact location of other underground services, such as telephone and telecommunications

cables, drainage pipes and soak wells, fuel lines and storage tanks, should also be established.

site plans and drawings for utilities can be borrowed from the project department. They may be

useful, but could be outdated and inaccurate.

13.1.4 Consideration should be given to the possibility of encountering toxic atmospheres during

excavation operations, especially if gas pipes or fuel lines cross or are close to the excavation line.

13.1.5 Where toxic atmospheres are encountered, testing must be carried out to establish the nature of

the atmosphere so that the correct personal protective equipment can be provided.

13.1.6 Hazardous substances may be present in excavated material where the work is carried out. All

plant and equipment to be used must be properly maintained in accordance with good engineering

practice and plant operators must be appropriately trained and certificated, if necessary.

13.1.7 Sufficient industrial grade portable ladders need to be on hand to enable workers to gain access

to, or egress from, the excavation.

13.1.8 Workers should not be permitted to climb up or down components of shoring systems since this

may weaken the shoring and trigger a collapse.

13.1.9 Unless a competent person determines otherwise, workers should not be allowed to enter an

excavated area unless it has been safely sloped, benched, shored or the workers are protected by

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a trench shield. Workers and members of the public must be protected from falling into

excavations by the use of appropriate barriers and warning signs.

13.1.10 Provision should be made for the regular inspection of the excavation by a competent person. The

condition of soil surrounding excavations can change quickly due to the soil drying out, changes in

the water table or water saturation of the soil, or if a previous excavation has disturbed virgin

ground.

13.1.11 The soil condition and state of any battering and benching of excavation faces and any shoring

needs to be frequently checked for signs of earth fretting, slipping, slumping or swelling.

13.1.12 Contractor is responsible for the safety and health of his employees while at work and should take

reasonable care to ensure that their actions do not harm or place others at risk.

13.1.13 One of his obligations is to co-operate with the client on safety and health matters and not to

interfere with the safety and health regime of King Fahd Medical City.

13.1.14 The contractor so far as practicable is also responsible for the safety and health of people who are

not employees.

13.1.15 He needs to take all practicable steps to ensure that the work of the contractor or his employees

does not harm any other person while at work, including members of the public or visitors to the

workplace.

13.2 Hazard management

13.2.1 Employers need to have an effective method in place to identify hazards and to determine whether

there are significant hazards that require further action. A hazard is an existing, new, or potential

situation or event that could result in injury or harm to health.

13.2.2 Excavation is recognized within the construction industry as one of the most hazardous operations,

with risk always present.

a) Workers should not be required to work in an excavation 1.5 meters or more deep that is not

protected by shoring, unless an examination of the ground by a competent person reveals no

indication of a potential cave-in.

b) Excavated slopes considered to be safe may quickly become hazardous due to changes in

weather or geological conditions.

c) Workers should not be permitted to work under raised loads and must be protected from loads

or objects falling from excavation equipment or other equipment.

13.2.3 A safety analysis that lists the hazards and suggests safety procedures should be prepared. The

minimum requirements for this safety analysis include:

a) Identification of the hazards;

b) Assessment of the risks from the hazards identified;

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c) Control measures required to eliminate or minimize the risks from the hazards; and

d) Identification of the person responsible for implementing and monitoring the control measures.

13.2.4 Where possible, the hazard should be eliminated, or the risk reduced, by changing or modifying

the proposed work method, or by use of alternative equipment.

13.2.5 Where the hazard cannot be eliminated, control measures should be implemented to isolate the

hazard and to minimize risk to employees.

13.2.6 In these circumstances, measures such as barricading areas of danger, provision of specific safety

training and work instructions, use of protective equipment and posting of warning signs should be

implemented.

13.2.7 Such measures should be discussed with employees and evaluated to ensure that they are

effective and do not create additional hazards.

13.2.8 The accepted means of planning to prevent injury is to identify hazards and then assess and

control the risk. At the control stage, there is a preferred order of hazard control measures that

should be applied.13

a) Contractor should ensure a competent person maintains supervision of employees when

excavation work is being carried out.

b) A competent person is defined as 'one who has acquired through training, qualification or

experience, or a combination of those things, the knowledge and skills required to do that thing

competently'.

c) A competent person should be capable of identifying existing and predictable hazards or

dangerous and unsafe working conditions in and around excavations, and be authorized to

take prompt corrective action to eliminate them. He should have knowledge of, and experience

in, the installation and use of protective systems and their causes of failure, and the ability to

detect conditions in excavations that could result in cave-ins.

d) The knowledge and skills required of a competent person will increase as the complexity of the

excavation work increases. Size is not the only determinant of knowledge and skills needed.

e) Many simple and straightforward excavations will only require experience while more complex

work may require training and qualifications as well. It is the complexity of the work which

determines the need for training, qualification or experience, or a combination of those things,

to carry out regular inspections of excavation work.

f) Because of the technical issues involved in many situations, a competent person will either

need to be an appropriately experienced engineer, or to act on advice from an engineer on a

specific aspect of the excavation. This may include situations such as excavations:

i. Deeper than six meters;

ii. Adjacent to ponded water;

iii. In soils with slip planes or variable ground conditions;

iv. Involving complex de-watering; or

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v. Where it is necessary to evaluate the pressure on trench walls from surcharge loads such

as excavated material, machinery or adjacent structures so as to determine appropriate

ground support systems.

13.2.9 In many other situations, considerable experience in excavation work, including shoring of

excavated faces, and a sound knowledge of the technical principles involved in excavation work,

will be necessary.

13.2.10 All competent persons should have a sound knowledge of:

a.) How to identify and locate underground services;

b.) The hazard identification and risk management process for excavation work;

c.) Safe work practices for excavation work;

d.) How to identify soil types and other factors that affect the safety of an excavation; and

e.) Occupational safety and health legislation and standards.

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13.3 Support systems and retaining structures

13.3.1 Support systems and retaining structures include shoring systems to support the sides of an

excavation, shield systems to protect against cave-in and structures such as underpinning, shoring

or bracing to provide support to an adjacent structure or underground installation.

13.3.2 Shoring is the provision of support for excavation faces to prevent movement of soil. Shoring or

shielding is used when the location of an excavation or the depth of cut makes battering or

benching impracticable.

13.3.3 The two basic types of shoring are hydraulically operated metal shoring and timber shoring.

The trend today is toward the use of shoring using hydraulic jacks and steel struts, walls and

sheeting, although aluminum or timber components are sometimes used.

13.3.4 Shields or trench boxes differ from shoring in that they do not support the trench face. They are

intended primarily to protect workers from cave-ins.

13.3.5 The space between the trench box and the sides of the excavation are backfilled to prevent lateral

movement of the box.

13.3.6 Trench shields are generally used in open areas where cranage is satisfactory. However, they may

also be used in combination with sloping and benching.

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13.4 Battering

13.4.1 Battering, often referred to as sloping, is a way of preventing cave-ins by cutting the face back to a

safe incline. Advice from a competent person is always needed to assess safe slopes since the

angle of incline required to prevent collapse varies with the soil type, the height of the face, the

moisture content of the soil and any surcharge loads acting on the face.

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13.4.2 It is not necessary to batter the face of excavations which a competent person determines are in

stable rock, or has assessed there is no risk of a potential cave-in.

13.4.3 Battering the sides of an excavation to provide safe working conditions is often only economical for

shallow excavations in open ground with minimal obstructions.

13.4.4 For deeper excavations and trenches, shoring or the use of shields can usually provide a quicker

and more economical option by reducing the quantity of excavation, placement, and backfill, and

the often high costs of land restoration in built up areas.

13.4.5 Employees need to be protected from loose rock or soil falling or rolling from a sloping face. Hand

scaling of loose material from the face may be necessary, and in some instances protective

barriers may be necessary on the face to contain falling material.

13.4.6 Employees also need to be protected from excavated or other materials or equipment that could

fall or roll into the excavation. Materials and equipment should be kept at least 600 mm from the

edge of excavations.

13.5 Benching

13.5.1 Benching is a method of preventing collapses or cave-ins by excavating the sides of an excavation

to form one or a series of horizontal levels or steps, with vertical surfaces between levels. As for

battering, the type of soil determines the horizontal to vertical ratio of the benched side.

13.5.2 Benching is suitable only for cohesive type soils. As a general rule, the bottom vertical height of a

trench excavation should not exceed 1.2metres for the bench.

13.5.3 Subsequent benches should also be 1.2metres vertical height, although 1.5metres may be used in

very cohesive soils. In all benching operations, the overall slope of the excavated sides should not

exceed the safe slopes mentioned in Section 9.1.

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13.6 De-watering systems

13.6.1 Employees should not work in excavations where water has accumulated or where water is

accumulating from any source, unless adequate precautions have been taken. Water may

accumulate from a number of sources:

i. High ground water table seeping into the excavation;

ii. Storm water drains;

iii. Surface run off after heavy rain; or

13.6.2 The precautions necessary to protect against cave-ins and adjoining structures adequately will vary

with each situation, and include water removal and special support or shield systems.

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13.6.3 Water control may involve the relatively simple removal of small amounts of water at the bottom of

an excavation by electrically driven sludge pumps. It may also involve the control of large quantities

of water in situations where an excavation is below the level of the ground water table.

13.6.4 In this situation, dewatering systems consisting of pumps and suction points, or 'well-points'

connected to pipelines are located around an excavation or alongside a trench to pump the water to

waste and lower the water table below the bottom of the trench or excavation.

13.6.5 Excavation in water bearing ground is always troublesome. Steel sheet piling or closed sheeting

are not always a practicable solution, and often the most effective way is to drain the ground before

excavation begins to enable work to be carried out in the dry.

13.6.6 Drainage is achieved by jetting well-points or 'spears' into the ground to the desired depth, and

pumping out the water at a rate exceeding the inflow from the surrounding water table.

13.6.7 A well-point is a pipe at the bottom of which is a ball valve and nozzle arrangement which opens

when water is pumped down the pipe and closes when the pipe is under suction. The lower part of

the pipe is perforated with holes, and these are in turn covered with a fine mesh screen.

13.6.8 The area to be dewatered is surrounded with well-points. The spacing depends on the nature of the

ground and the volume of ground water flowing. The well-points are connected to a header or ring

main which is connected to the pumping plant.

13.6.9 Duplicate pumps should be on standby, if the dewatering system fails, as rapid ingress of water will

undoubtedly lead to cave-ins. In wider trenches, or where water volumes are large or the water

table is high, a line of well points may be required on both sides of the excavation.

13.6.10 Groundwater can be lowered about six meters by this method. At greater depths of excavation a

second stage installation can be installed at a lower level after the excavation has proceeded as far

as the dewatering will permit.

13.6.11 Other systems for lowering ground water levels beyond six meters are available and expert advice

should be sought to obtain the most suitable arrangement.

13.6.12 Environmental issues may arise where it is necessary to lower groundwater levels, particularly for

lengthy periods. This is a matter which should be addressed by the contractor before work

commences.

13.6.13 In addition, the disposal of large quantities of water from an excavation may present problems

which require careful planning.

13.6.14 When work is finished, well-points can be recovered by pumping water down each point to loosen it

in the ground and then by simply withdrawing it.

13.6.16 The flow from each well-point will depend on the nature of the soil, porosity, etc, and the depth of

the water table.

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13.6.17 The spacing of the well-points and the capacity of the pump should be designed to accommodate

the volume of water.

13.6.18 Water control may also involve the prevention of flooding of the excavation from surface run off

after heavy rain or flooding from overflowing storm water drains where the capacity of the drain is

insufficient either because of the intensity of the rainfall, or from under-design or lack of

maintenance.

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13.7 Barriers and warning signs

13.7.1 If, at a workplace where excavation work is to be done, any person is at risk of injury because of

the excavation work then a person who, at the workplace, is an employer, the main contractor or a

self-employed person must ensure that:

a.) Suitable barriers are erected between the person at risk and the likely cause of the danger; and

b.) Suitable signs that warn of the risk are erected at the place where the excavation work is to be

done.

13.7.2 Other forms of visual warning should also be considered and may be appropriate dependent on

the nature of the excavation work.

13.7.3 'Witches hats' and reflectorised mesh may be suitable to warn of low level hazards on an

excavation site and bollards and earth mounds could be used in association with these visual

items.

14.0 PROVISION, FOR MOVEMENT OF PERSONS; IN, AROUND AND ACROSS AN

EXCAVATION

14.0.1 If, at a workplace, there is an excavated area in, around, or across the top of, which persons can

move or plant can be moved then a person who, at the workplace, is an employer, the main

contractor, a self-employed person or a person having control of the workplace must ensure, as far

as is practicable, that

(a) Persons can move safely in, around, and across the top of, the area; and

(b) Plant can be moved safely in, around, and across the top.

14.1 Inspections

14.1.1 Inspections of the excavation should be made daily before the start of work and as needed

throughout each shift.

a.) Inspections should be carried out by a competent person.

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b.) Inspections should look for indications of any situation that could result in cave-ins, indications of

failure of protective systems and any indications of hazardous substances or toxic atmospheres

being encountered.

c.) Inspections should be carried out:

i. Daily and before work commences;

ii. When tension cracks, sloughing, undercutting, water seepage, bulging or other similar events

occur or when disturbed soil is encountered.

iii. When the size, location or placement of the spoil heap changes;

iv. When any indication of movement in an adjacent structure is noticed; and

v. After every rainstorm and any earthquake or seismic event.

14.1.2 Where inspections reveal hazardous situations, workers must be removed from the excavation

until precautions have been taken to ensure their safety.

14.1.3 Where inspections are carried out and reveal hazardous situations, they should be documented.

14.2 Direct supervision

14.2.1 Employers should ensure a competent person maintains supervision of employees when

excavation work is being undertaken.

14.2.2 Direct supervision means continuous and 'close' supervision necessary for particular activities and

work processes. There are likely to be many activities in excavation work requiring this level of

supervision.

14.2.3 The commencement of shoring or shielding operations and their subsequent removal are activities

where the risk of injury to workers is particularly high and requires direct supervision.

14.2.4 It should always be provided to operations involving exposure of underground services such as

electric power, gas, water or sewer lines. The risk of injury from electricity, fire, explosion,

engulfment by liquid or becoming overwhelmed by a contaminant is high during these activities.

14.2.5 Direct supervision of trenching carried out for soil investigation purposes is always necessary

when entry is made into un shored deep trenches to examine soil profiles.

14.2.6 The need for supervision of employees to ensure they are not exposed to hazards is fundamental

requirement.

15.0 ESTABLISHING AN AREA FOR PLACEMENT OF EXCAVATED MATERIALS, PLANT

AND OTHER LOADS

15.0.1 A person who, at a workplace where excavation work is done, is an employer, the main contractor

or a self-employed person must ensure that no item of plant, no excavated material and no other

load is placed near the excavated area in a position where there is risk that:

i. the sides of the excavated area may collapse; or

ii. the plant, material or other load may fall into the excavated area.

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15.0.2 Prior to excavation commencing, consideration should be given to the need for an area to be set

aside for stockpiling excavated material and to accommodate idle plant and equipment and other

materials until they are required on site.

15.0.3 Without a temporary stockpile area, the excavated material and plant is usually placed above the

face of the excavation. Unless these temporary loads have been provided for, collapse of the face

may occur.

16.0 TRAFFIC MANAGEMENT

16.0.1 Prior to commencement of excavation affecting roads or traffic movement, a documented traffic

control management plan should be prepared that includes, where necessary, traffic controller,

barricades and any road closures.

16.0.2 This traffic management plan should be available on site at all times when work is carried out.

17.0 LOCATION OF UNDERGROUND SERVICES AND OTHER STRUCTURES

17.0.1 These services are electricity, gas, water and sewerage. In addition, an assessment should be

made of the likelihood of other underground hazards being present before any excavation work

commences.

17.0.2 These hazards could include telephone and telecommunication cables, drainage pipes and soak

wells, fuel lines and underground storage tanks.

17.0.3 The exact location of these potential hazards should also be determined if they are in close

proximity and may have a bearing on the safety of the excavation.

a.) The precise location of sewerage services where cut-ins are required on a sewer main in a

trench should be established at the preplanning stage. This will avoid the need to remove any

part of the support system for cut-in purposes.

b.) Excavation into unsupported ground should never be undertaken.

c.) Underground services are widespread and should be assumed to be present until proven

otherwise.

d.) Excavations in street reserves will almost certainly encounter underground services within the

trench or in the face of the excavation parallel to the line of excavation.

e.) Many injuries occur when underground services are struck, penetrated or damaged during

excavating. Electric shock or electrocution may result from striking electricity cables with

excavation equipment.

f.) However, not all accidents happen immediately. Some happen much later due to the effects of

corrosion on a damaged or weakened service line. Pipe leaks or bursts, gas flames or

explosion can cause personal injury.

17.0.4 When planning an excavation, a complete search for the location of underground services should

be undertaken before work commences.

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17.0.5 At this stage, many risks associated with working near existing underground services can be

minimized. Once the records are obtained, they should be kept in the work area and be accessible

to all workers.

17.0.6 Exposed service pipes should not be used as hand or foot holds or supports of any kind. Care

needs to be taken to avoid any damage to protective coatings or cathodic protection.

17.0.7 In addition to the risk of personal injury caused by directly striking underground cables and mains,

previously dug trenches have a weakening effect on the face of an excavation if they are in close

proximity.

17.0.8 'As built' or 'as constructed' drawings may be available to show the location of underground

services. However, these are often unreliable or lost, so exploratory hand digging will be

necessary to locate or confirm the location of services.

17.0.9 A contingency plan to be adopted in case of an emergency arising from damage to an

underground service should be kept at the excavation site and communicated to workers.

17.0.10 It should provide, as a minimum, emergency telephone numbers, containment procedures and

procedures to ensure the safety of workers.

17.0.11 Underground services are often backfilled with selected material to protect the coating of the

service pipes.

17.0.12 Generally, the backfill is fine grained to eliminate the risk of stone damage to plastic services. Any

special backfill which is disturbed needs to be reinstated to its original standard.

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17.1 Electricity cables

17.1.1 It is not possible to give a description of all types of underground electricity cables, so any services

not identifiable in the underground power alignment should be treated as electric cables.

17.1.2 Specialist knowledge may be needed to make a positive identification. Injury may occur or a loss

of electricity supply may result if a cable, sheath or conductor insulation is damaged by hand tools

or machinery.

17.1.3 The explosive effects of arcing current, any associated fire or flames, or electric shock can cause

serious injury or death.

17.1.4 All work near underground cables needs to be carried out in accordance with the requirements of

the distribution authority.

17.1.5 Work should not commence until services identified as electric cables are de-energized and

required precautions are taken.

17.1.6 Workers should not handle any cable or move any cable until the distribution authority has issued

permission.

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17.1.7 All electrical hazards and physical hazards associated with working near an electricity cable should

be identified and the risks assessed.

17.2 Gas pipes

17.2.1 Damage to gas pipes can cause gas escape, which may lead to fires or explosions. Gas escape

can occur immediately, if the damage is severe or sometime later, if damage has occurred to the

protective coating of the pipe.

17.2.2 Damage which is not reinstated while the excavation is open can be extremely difficult and costly

to repair at a later stage.

17.3 Fuel lines

17.3.1 These may contain liquid petroleum, oil or various types of gas. Damage can cause similar

outcomes to gas pipe damage mentioned above.

17.3.2 It is important to identify the product within the fuel line to enable appropriate safety measures to

be undertaken.

17.4 Water, sewer and drainage pipes

17.4.1 Damage to water pipes can cause local flooding of an excavation which may undermine shoring

and other supports causing collapse. This can have a disastrous effect on any other services in or

nearby to the excavation.

17.4.2 High pressure pipe lines, when damaged, can propel debris and other material at enormous force

and cause severe injuries. Broken sewer pipes can cause contamination of the ground and

atmosphere and render an excavation unusable for some time. Many sewer pipes are under high

pressure.

17.4.3 Storm water drains when damaged can flood excavations and may also contain contaminants and

harmful gases. Any results from monitoring carried out to detect toxic atmospheres or

contaminants should be communicated to employees.

17.5 Telecommunication cables

17.5.1 Although the possibility of personal injury from damaged telecommunication cable is small. The

possibility of creating a hazardous situation due to interruption of communication during an

emergency is very real.

17.5.2 Some telecommunication cables contain optical fibres which carry light signals generated by

lasers. Exposure to the laser beam may be harmful to the eyes and skin.

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18.0 FACTORS TO CONSIDER TO AVOID CAVE-IN IF, AT A WORKPLACE

a.) Any excavation work or earthwork is to be done and there is a risk that the matter forming, or

adjacent to, the excavated area or the earthwork may fall or dislodge; or

b.) A person is required to work in an excavated area or other opening in the ground that is at

least 1.5metres deep, then a person who, at the workplace is an employer.

c.) The main contractor or a self-employed person must ensure that while a person is working in

or near the work, area or opening, the work, area or opening is shored-in a manner which will

prevent it from collapsing or moving.

The following factors should be considered when deciding upon a system of support for an

excavation:

18.0.1 Nature of the ground:

Soil or rock type;

Presence of any faults or bedding planes in the soil or rock made up ground;

Moisture content of the soil or rock. Cohesiveness of the soil or rock may change,

Height of the face.

18.0.2 Water control

Water control may involve the relatively simple removal of small amounts of water at the bottom of

an excavation by electrically driven sludge pumps, or it may involve the use of dewatering systems

to control large quantities of water in situations where an excavation is below the level of the

ground water table.

18.0.3 Static loads near an excavation.

18.0.4 Dynamic loads near an excavation, such as, traffic and excavation equipment.

18.0.5 Ground vibration: The collapse of an excavated side may be caused by ground vibration

accompanying dynamic loads. Such vibration may come from:

- rail stock passing close to an excavation

- excavation and compaction machinery

- construction works in the immediate vicinity (for example pile driving)

- rock breakers and

- use of explosives.

18.1 Daily site inspections

18.1.1 In the course of daily routine inspections, it is important to watch for unsafe situations which are

common during excavating and backfilling. Surveillance of trench walls and support systems

should be carried out frequently.

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18.1.2 All employees should be encouraged to look for and report hazards. Workers at sites where

excavation takes place, as well as other employees having reason to visit such sites, should be

made aware of hazards likely to cause injury to themselves or others.

18.1.3 Adequate protection needs to be provided to protect employees from loose rock or soil that could

fall or roll down the face of an excavation.

18.1.4 Protection may be carried out by scaling to remove loose material or by the installation of

protective barriers on the face to stop and contain falling material.

18.1.5 Materials, plant and equipment should be kept or placed at least 600 mm from the edge of the

excavation.

18.1.6 The face of dumped excavated material should be kept at a safe slope and retaining devices or toe

boards may be necessary to retain this 600 mm minimum clearance and prevent spoil from

‘running’ or sliding back into the excavation.

18.1.7 Spoil should be placed so that it channels rainwater and other run-off water away from the

excavation. When excavation is being done beside an old service line, spoil should be placed on

the side opposite the old service line to prevent excessive loading on previously weakened ground.

When it is necessary to place spoil close to a trench due to close fences, buildings, trees, etc.

18.1.8 The weight of the spoil pile may overload the sides of a trench, requiring the supporting system to

be strengthened at these locations.

18.1.8 If it is necessary to place surcharge loads from stored material, plant or equipment near the edge

of a sloped excavation face, the slope of the face may need to be flattened below the maximum

allowable slope. A competent person should determine safe slopes, especially where surcharge

loads are present.

18.1.9 An adequate system of safety should always be in place to protect against cave-ins or the risk to

safety and health arising from one or more of the following:

a) The fall or dislodgement of earth or rock;

b) The placement of excavated materials, plant or other loads;

c) The instability of any adjoining structure caused by the excavation;

d) The existence of a previous excavation;

e) The presence of underground services or structures;

f) The instability of the excavation due to persons or plant working adjacent to the excavation; or

g) The presence or in-rush of water or other liquid.

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18.2 During working hours

18.2.1 The following precautions should be taken during working hours:

a) display warning signs at the work site and erect appropriate barriers around the excavation;

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b) set-up warning signs on approach roads to the excavation, particularly where the work is not

readily visible from a distance, and provide a temporary by-pass for vehicular traffic if necessary. It

may also be necessary to arrange for a traffic controller to warn and control traffic. Where

excavation work is carried out on gazette roads,

c) establish access, with direction signs for pedestrians, around or over an excavation;

d) consider whether temporary barriers such as heaps of earth are needed to prevent accidental

vehicle entry to a hazardous location; and

e) do not leave any hazard unguarded during work breaks.

18.2 Outside working hours

18.2.1 The following precautions should be taken outside working hours:

a.) erect appropriate barriers around the excavation;

b.) provide warning lights;

c.) set up reflectorised signs to give advance warning to vehicular traffic; and

d.) where practicable, arrange construction so that excavation work across driveways and roadways is

backfilled before the end of a working day. If this is not practicable, provide access with safety

guard rails across the excavation.

19.0 SPECIAL PRECAUTIONS

19.0.1 Where excavation work breaks through security fences around features such as electricity

switchyards, swimming pools, etc, temporary fencing needs to be provided to maintain security to

the original standard existing prior to excavation work.

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19.1 Access

19.1.1 Careful planning is necessary to give safe access and egress for workers and plant under normal

working conditions.

19.1.2 Full provision for the safety and rescue of workers in the case of an accident should not be

overlooked - this includes free movement of stretchers.

19.1.3 Access to surfaces more than one meter above or below ground level should be by fixed means

using:

- ladders;

- stairways; or

- ramps.

19.1.4 In trenches, access ladders or other means of access should be provided at intervals of not more

than 30metres where people are working and near junctions or angles in the trench line.

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19.1.5 Ladders must be secured and extend a minimum of 900 mm above the landing. Metal ladders

should be used with caution where electricity or overhead power lines are present.

19.1.6 Workers should not use shoring to climb into or out of an excavation.

19.1.7 Portable timber or metal ladders must comply with AS/NZS 1892. Normal access routes used

within an excavation should, wherever practicable, permit workers to pass without bumping into

obstructions.

19.1.8 Walking in an excavation should occur on a secure footing without risk of being hit by falling

debris.

19.2 Emergency access and egress

19.2.1 When an emergency occurs, only rescue traffic should be permitted in the area and all access

ways cleared immediately.

19.2.2 Operators should always park their vehicles clear of access routes or haul roads to leave adequate

clearance for emergency traffic.

19.2.3 Rescue teams will then be able to use routes normally used by plant. Rescue traffic may include

stretchers, and should be provided for when planning details of access throughout the job.

19.2.4 Wherever possible, some alternative access should be provided for emergency use. Open

excavations should have a spare ladder provided at the top of the excavation which should be left

in a place known to all workers and reserved solely for emergency use.

19.2.5 It should be painted red or yellow to emphasize its emergency role.

19.2.6 Emergency access and egress also implies safe egress from the face of an advancing excavation.

At the face, while supporting members are being placed, protection cannot be as good as where

the supporting work is completed.

19.2.7 This zone of reduced protection should be kept short by keeping the support as close as

practicable to the face being excavated.

19.2.8 Workers should be provided with a clear run to safety should there be a fall of earth. This requires

the floor of the excavation to be kept as clear as possible of loose spoil, tools, timber.

19.3 Working alone

19.3.1 See Section 6.1 for the requirements of regulation 3.112, certain excavation work not to be done in

isolation.

19.4 Working space

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19.4.1 Workers should be kept sufficiently far apart when working to avoid injury from the use of picks or

other tools. This applies particularly to work in trenches and small excavations.

19.5 Safety helmets

19.5.1 Regulation 3.36 requires persons in and around trenches and other excavation sites to wear safety

helmets if there is a risk of the person being struck on the head by falling objects.

19.5.2 It is important for people in and around excavations to wear safety helmets. Not wearing a safety

helmet is a dangerous practice.

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19.6 Eye protection

19.6.1 Suitable eye protection must be worn when there is a risk of eye injury. Flying grit and chips of

rock are two common sources of danger to eyes in excavation work.

19.7 Dust nuisance

19.7.1 In dry conditions, frequent watering may need to be applied to haul roads and work areas to

reduce the level of nuisance dust. Oiling or sealant may be suitable for some work areas.

19.8 Fumes and emissions

19.8.1 Employees should not be permitted to work in hazardous or toxic atmospheres. Excavations are a

natural sump for any gas heavier than air.

19.8.2 Various types of gas such as methane and sulphur dioxide can seep through the ground, while

leakage may occur from nearby underground services such as gas or sewer pipes or underground

fuel storage.

19.8.3 Carbon dioxide may accumulate from nearby internal combustion engines and toxic atmospheres

may be created where excavation occurs.

19.8.4 Where there is any risk of air contamination, tests using detection equipment must be carried out

prior to work commencing, and at regular intervals throughout the course of the work. Where

testing reveals an oxygen deficient or toxic atmosphere, attempts should be made to keep the

atmosphere clear.

19.9 Protection from falls

19.9.1 Where there is a risk of a person falling from an access way, a hand rail, and sometimes an

intermediate rail or a toe board, should be provided to enable persons to pass more easily and to

prevent falls.

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19.9.2 It must be understood that where there is a risk that persons could fall three meters or more from

an edge.

19.9.3 Protection consisting of a fall injury prevention system (fall-arrest harness and lanyard attached to

an anchorage point) or alternatively guard railing comprising a top rail, mid rail and toe board, or

top rail, toe board and meshing, must be provided.

19.9.4 Edge protection may often be required on access ways and at the edge of steep cuttings such as

excavations for deep sewerage lines, large structures.

19.9.5 Ladder runs (take-off to landing) should be not more than six meters, and intermediate landings

should be provided to break up any longer runs.

19.9.6 At any landing, the ladder below should be offset from the ladder above so that it is not possible for

a person or objects to fall past the landing.

19.9.7 Landing platforms should be fitted with guard rails and toe boards. Ladders should be placed so

that the foot of the ladder is approximately 30 cm out for each 90-120 cm vertical distance.

19.9.8 A ladder should extend at least 900 mm above the landing it serves, unless alternative hand holds

are provided. It is particularly important that the rise to the lowest rung is uniform with the rung

spacing. All ladders must be secured against slipping.

19.10 Separation of Traffic

19.10.1 Wherever practicable, the traffic route used for excavated material should be separated from that

used by workers.

19.10.2 Employees working near traffic should be provided with and required to wear warning vests or

other suitable garments marked with or made of reflectorized or high-visibility materials. In areas

shallow enough for workers on top to see and talk to workers below, no difficulty should arise.

19.11 Ramps and runways

19.11.1 Ramps or runways used for running plant into and out of an excavation need to be constructed of

appropriate strength, width and grade for the plant being used.

19.11.2 Ramps intended for use by track vehicles only should be marked as such and no other vehicles

allowed to use them.

19.11.3 Ramps or runways should normally have a clear width of at least 3.7 meters for non-passing traffic

and at least 6.7 meters when providing for passing traffic and be provided with substantial wheel

guards where there is any risk of vehicles slipping sideways into the excavation.

19.11.4 A substantial earth windrow may be sufficient in some cases. Frequent careful examination and

maintenance is needed to keep ramps in a safe and serviceable condition.

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19.11.5 Ramps used for foot traffic within the job should preferably be not steeper than one vertical in six

horizontal (1:6), unless cleats are used and in no case steeper than one in four (1:4). To climb a

steeper grade than this, flights of steps alternating with landings should be used.

19.12 Plant and Gear

19.12.1 Excavation work cannot be carried out safely unless plant and equipment is in good condition. It is

the responsibility of the contractor to provide plant such that, so far as practicable, employees are

not exposed to hazards. As far as practicable, ensure that the equipment does not create a

hazard.

19.13 Excavation plant operating near overhead power lines

19.13.1 Cranes and excavation equipment, particularly backhoes, trench diggers, excavators and

draglines, need to be operated with extreme care in the vicinity of power lines.

19.13.2 Unless otherwise indicated all power lines should be treated as being live.

19.14 Scaffolding

19.14.1 Scaffolding may be required for certain special excavation work when access to high faces is

needed.

19.15 Drainage

19.15.1 In all excavations, the safety of faces depends largely on the effectiveness of steps taken to

control surface and ground water.

19.15.2 Where practicable, surface water should be collected in drains and discharged clear of the working

area. All sub-soil drains found should be effectively diverted and the water led away from the site.

19.15.3 During excavation checks should be made for inflow from seepage. When found, such inflows

should be collected into a sump and pumped clear of the excavation.

19.15.4 Such seepage may cause faces to slump, and localized shoring may be needed. Springs coming

through the floor of an excavation may cause dangerous unstable conditions leading to cave in.

20.0 SAFE SLOPES

20.0.1 The face of an excavation may be cut back to a safe slope as an alternative to shoring. Sloping

(battering) the face may be a safe and cheaper way if there is sufficient space at the site.

20.0.2 A slope is safe when the material is stable. That is, the slope does not flatten when left for a

considerable period, there is no movement of material down the slope and the toe of the slope

remains in the same place.

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20.0.3 Different soils, when dumped in heaps, will assume a characteristic shape and settle naturally at

different slopes. The angle which a sloping face of loose earth makes with the horizontal is

sometimes referred to as the angle of repose.

20.0.4 However, it is poor practice to relate the safe slope of an excavation to the angle of repose, even

though the safe slope may be similar in some types of soil to the angle of repose.

20.0.5 On some excavations, typically those of long-term duration, an analysis of soil samples will enable

an engineer experienced in soil mechanics to calculate safe slopes.

20.0.6 However, in trenching works of shorter duration, this is usually not practicable and excavated

slopes should be sufficiently conservative to avoid the risk of collapse.

20.0.7 The safety of the slope can change if the local geology and condition of the soil changes. The

presence of water has a substantial effect on the safe excavated slope of any material. If the

material is wet by rain or seepage water, it may slump or flatten out.

20.0.8 The safe slope for a face will depend on the depth of cut, the type of soil, the moisture content and

condition of the material in the face and the length of time the face will be required to stand.

20.0.9 The location of any underground services near the excavation will also affect the safe slope. In a

shallow trench for pipe laying, where the material is uniform and known to be stable and the trench

will be back filled within a short time, vertical faces may be safe.

20.0.10 However, the excavation of a vertical sided trench in which workers are required to work should be

considered as dangerous and advice from a competent person should always be obtained.

20.0.11 In considering the stability of an excavated slope, it is important to note that, as a rule of thumb,

the magnitude of horizontal forces is a function of the square of the total depth of the face.

20.0.12 Therefore, at a depth of two meters, horizontal forces are four times the magnitude of such forces

in a one meter deep cut, nine times in a three meter deep cut, 16 times in a four meter deep cut

and so on. These simple calculations indicate the very significant impact of the rate of increase of

horizontal forces with increasing depth.

20.0.13 The safe slope for faces will depend on the depth of cut, the type and condition of material in the

face and the length of time the face will be required to stand before backfilling.

20.0.14 In a trench where the material is uniform and known to be stable and the trench will be back filled

within a short time, vertical faces may be safe for depths of up to 1.5 meters. However

consideration needs to be given to the type of work being carried out in a trench.

20.0.15 If a worker is on his knees laying pipes or working in a bent or seated position, a trench less than

1.5 meters deep may present significant hazards and risks.

20.0.16 A safe slope may be judged by the careful examination of the size, shape, nature and bedding of

the material in the face.

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20.0.17 A competent person is needed to make this judgment which requires experience and knowledge of

the local area.

20.0.18 All loose or hanging rock should be removed and frequent inspections are necessary as weather

conditions can quickly loosen excavated faces.

20.0.19 Where an excavation exceeds three meters in depth it should be horizontally benched to stabilize

the slopes and to prevent material from the top of the slopes falling down to the working area.

20.0.20 Benches should be at about three meter vertical intervals and should not be less than 1.2 meters

wide. They should be sloped to reduce the possibility of water scouring.UM

21.0 STABILITY OF AFFECTED BUILDING OR STRUCTURES

21.0.1 If any excavation work or earthwork to be done at a workplace is likely to adversely affect the

stability of any building or structure or any road then a person who, at the workplace, is an

employer.

21.0.2 The main contractor or a self-employed person must ensure that the work is not commenced or

continued unless the stability of the building or structure or the road is protected by sheet piling,

shoring, bracing, guying or other appropriate means.

21.1 Soldier sets

21.1.1 The soldier set is a common form of trench support set which can be formed with steel or timber.

This system is mostly used in rock, stiff clays and in other soil types with similar properties.

21.1.2 Unlike closed sheeting sets, soldier sets retain the earth where there may be a fault in the

embankment.

21.2 Removal of shoring

21.2.1 Shoring and all support systems should be removed in a manner that protects workers from cave-

ins, structural collapse or being struck by structural members.

21.2.2 Before removal begins, it may be necessary to install other temporary structural members to

ensure worker safety.

21.2.3 An excavated wall is very unstable when ground supports are being removed or dismantled, and

there is no guarantee the sides will not collapse at this time.

21.2.4 When a ground support system is being dismantled where the excavation was not properly

backfilled, the trench walls may not withstand the increase in side pressure that was previously

taken by the ground supports.

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21.2.5 Removal should begin at, and progress from, the bottom of the excavation. Members should be

released slowly to note any indication of possible failure of the remaining support members or

possible cave-in.

21.2.6 Backfilling and compaction should progress together with the removal of support members.

Removal of sets should be done from the surface or from a supported area of trench.

21.2.7 No ground supports should be removed from a section of a trench where persons are working.

21.2.8 Under no circumstances should shoring be partly removed unless it is for the purpose of complete

removal and backfilling.

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General Terms and Conditions

General Terms: 1‐ All articles mentioned in the specifications of government tenders and procurement system that

was issued by the Royal Decree No. (M/58) dated 04/09/1427 H and its executive regulations issued by the Ministerial resolution of the Ministry of Finance No. (362) dated 20/02/1428 H regarding all issues that were not included in this conditions and specifications

2‐ The bidder shall submit the offer in one original copy and two duplicate copies in an envelope properly closed and sealed with the bidder stamp, and it shall include the value of the construction and execution as described in the context of these conditions by completing all fields of the bill of specifications and prices (paper and electronic) attached to this document.

3‐ Each bidder for this tender has to provide the following documents and licenses when submitting the offer: • the commercial registration or regulatory permit in the field of the works the bidder is submitting for. • Classification certificate in the field of business that the bidder submitted for if the value of the offer requires certain classification according to the provisions contained in the (contractors Classification) system. • Payment certificate of Zakat, or tax • Certificate from the General Organization for Social Insurance that proves the registration of the bidder company and that insurance fees are settled. • Chamber of Commerce membership certificate. • Investment permit If the bidder was permitted according to the system of (foreign investment). • Saudization Certificate

4‐ Documents and licenses referred to in paragraph (3) of these conditions must be valid. 5‐ The bidder's offer must include a bid bond of (% 1) one percent of the total value of the offer and

it must be valid for a period of three months, renewable acceptable to King Fahd Medical City and the Saudi Monetary Agency. And before signing the contract, the bidder also has to submit an unconditional bank guarantee (5%) five percent of the total contract value valid for three years upon receiving the award letter, in order to ensure the execution of the required maintenance works during the warranty period of three years from the date of preliminary acceptance date.

6‐ The final warranty period shall start after the final handover of the completed site to King Fahd Medical City.

7‐ King Fahd Medical City has the the right to increase the total contract value by a maximum of ten percent or decrease the total contract value by twenty percent maximum.

8‐ The bidder has to mention the total price in the cover letter, and must confirm its obligation to the conditions and specifications.

9‐ The Contractor shall not charge the costs of a site on other sites o one item on other items so as to divide work or reduce the works according to "the available budget".

10‐ The city has the right to increase or reduce or delete the quantity any item before awarding the contract.

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11‐ The submitted offer must contain the original copies of the drawings, catalogs and technical bulletins for the submitted equipments and the bill of quantities and specifications must be filled in, signed and stamped by the bidder. The evaluation of the offers shall be based on those tables, and any offer violating those conditions, does not contain the mentioned bill of specifications filled in, signed and stamped, shall be rejected.

12‐ ِ◌According to Article Thirty‐seventh and article thirty eighth of the executive regulations of the government tenders and procurement system, the bidder must provide a proof of its technical expertise and similar jobs in existing facilities in the Kingdom of Saudi Arabia, and to clarify his financial status and ability, and the size of its current obligations for the contracts that the bidder is currently executing, the standard of execution, and whether the bidder can execute the tender project as well as the existing contracts being executed by the bidder, provided that clarifying these factors are affecting the admission or exclusion of the offer.

13‐ The concluded contract with the awarded bidder shall be considered as public works contract but not limited to the procurement process, and these conditions and specifications are considered as part and parcel of the contract.

14‐ Offer shall be valid for not less than three months from the bid opening date, and is renewable for a similar period unless a letter comes from the bidder stating not to approve the offer extension and before the expiry of the offer.

15‐ Any attached or annexed reservation to the bidder offer makes the offer subject to exclusion according to Article XX of the government tenders and procurement system.

16‐ In addition to submitting offer price on the paper, the bidder is obligated to fill in and use the attached file which contains bill of prices and quantities, and this is a mandatory requirement for all companies.

17‐ The bidder may not submit any option or alternative offer according to Article XIX of the executive regulations of government tenders and procurement system, unless the tender conditions included the text to offer an alternative.

18‐ It is required to submit a comprehensive offer price for the works that are considered as an integrated system and indivisible, and King Fahd Medical City has the right to exclude the non‐conforming offers.

19‐ It is possible to divide tender when awarding whenever dividing shall be in the interest of the King Fahd Medical City, and some works may be cancelled or reduced in order to reach the approved amounts for the tender.

20‐ When awarding the project, the Contractor is obligated upon signing the contract, which worth more than five million riyals, to submit an insurance policy for the project by the a national insurance company, to the King Fahd Medical City, and in the event of violating this obligation the City shall stop the due payments until the Contractor shall provide the city with a proof of the project insurance.

21‐ The issuing of the related Licenses shall be the responsibilities of the company or institution executing the project.

22‐ If required, the contractor can provide a copy the government tenders and procurement system, issued by Royal Decree No. (M/58) dated 4/9/1427 AH and its executive regulations issued by the Ministerial resolution of the Ministry of Finance No. (362) dated 20/02/1428 H from the Procurement and Contracts department

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23‐ Offers Submittal Process: Submitting the offers to the contracts and procurement department at King Fahad Medical City must be by hand in return of a delivery receipt, before the bid closing date is expired, so as the offer shall contain the original and two copies closed and the seal with the bidder stamp as follows: 1) Cover letter that shall contain the total value of the offer. 2) Bank Guarantee (1% of the total value of the offer). 3) Official documents referred to in item 3 of the General Terms and Conditions and any other documents required in the tender documents. 4) Tender conditions and specifications document, and bill of prices and quantities after being filled in and stamped.

24‐ The company must not attach any external pricing and must be obligated to fill out the tender document only. The City will not be paying attention to any pricing written on papers other than the tender conditions and specifications document.

fines: 1 ‐ The terms of this tender are subject to a system of financial penalties in accordance with the system of government tenders and procurement, issued by Royal Decree No. (M / 58) dated 4/9/1427 AH and its executive regulations issued by the Ministry of Finance Ministerial Decree No. (362) dated 20/2/1428 AH. 2 ‐ In case the contractor did not provide an insurance policy, King Fahd Medical City shall have the right to collect the corresponding value of the insurance policy or to deduct the same from the contractor dues.

General Technical Terms:

1 ‐ The bidder has to submit a timetable including a workflow plan and a proposal of how to execute the works with the list of the proposed labor within the site, provided that this factor is one of the main factors for approving or excluding of the offer. 2 – It is not allowed to cover or hide any work without the approval of the engineer, and the contractor shall provide the opportunity for the supervising engineer to inspect and measure any work to be covered or hidden. 3 ‐ The bidder has to visit the work site and look at the infrastructure drawings before submitting an offer, and to submit among the offer papers a site visit certificate that will be given to him by the Projects Department at King Fahd Medical, and in the absence of the visit certificate the bidder shall be considered as aware of the backgrounds and requirements of the site , and may not thereafter claim any compensation in this regard. 4 ‐ The quantities mentioned in the bills of quantities are estimated quantities, so the contractor shall be fully responsible for any additional quantities arise in the contract and King Fahd Medical City will not compensate the Contractor for such increase regardless of its costs, unless the bidder shall clarify any fatal errors in the bill of quantities in a formal letter at least two weeks before submitting the tender (during the period of the tender announcement) in order to be remedied before the bid closing date. 5 ‐ Before starting execution work, the contractor is required to isolate the working areas in buildings with insulating Gibson Boards that are painted from outside and provide plastic covers to prevent dust leakage to other areas.

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6‐ The contractor is obligated to provide containers to transport waste from the site on a regular basis, and appoint a cleaning supervisor whose job shall be cleaning up the site on a daily basis. 7 – All materials must be of the kinds that meet the specifications of King Fahd Medical City, or the specifications in the bill of quantities and according to the instructions of the supervising engineer, and such materials must be subject to the necessary tests at the site. 8 ‐ The contractor must put a temporary steel/wooden board or several boards that describes the project name and the duration period, the name the executing contractor , the name of the project manager from the contractor side and from the side of the Projects & Maintenance Dept. , and it shall contain the logo of the medical city and the logo of the contractor to be installed in a prominent place at site provided that the design shall be made in coordination with the Projects Department. 9 ‐ The Contractor shall appoint a project manager from its side provided that he shall have management and engineering experience in the field of work, and able to update the project time schedule. 10 – The Contractor shall obtain the work permit during the processing stage to start the work, and shall not start working until all procedure for issuing the permit are completed and in coordination with the Projects Department.

General Terms for Security and Safety: 1 ‐ The Contractor (and his team representatives) shall take all required means of security and safety in the location of the work as per the guidelines for safety procedures and policies in this regard, and that any laxity in this matter will lead to stop the project and charge the contractor with all consequences of fines and so on. 2 ‐ All labor at site must be committed to carry and show the security and safety card at all times, and not to smoke inside hospitals and at the workplace, and they have to be present at the workplace and not to move between the hospital facilities for no reason, provided that this will make them subject to be stopped and questioned by security men. 3 ‐ The Contractor shall provide uniforms for the labor on‐site showing the company logo and the name of the project, and that any worker not wearing the uniform would be subject to be prevented from entering into the work site. 4 ‐ The contractor shall provide all means of safety for the workers like equipments, tools, shoes, protecting helmets and fire extinguishers in sufficient numbers, as well as providing first aid kit, provided that reserve tools and equipments shall be provided at site to be used by the project supervising team. 5 ‐ The contractor shall provide all the required sign or warning boards on site. 6 ‐ The contractor must warn all employees not to use gas cylinders (dedicated to cooking) in any case, and in cas of using gas cylinders for welding, etc., there must be a prior coordination with the Safety Department before the starting such works. 7 ‐ The project manager from the contractor side and all reporting supervisors must attend the training course for safety, in coordination with the Safety section in the Security and safety department, provided that this is one of the requirements of the transition stage to start working.

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Special Terms & Conditions

1. Execution: 1‐ The execution period of all works are three months starting from the date of the site handing over provided that the site handing over date shall not exceed two months from the award letter date. 1‐2 in case of the contractor delay to execute works on time as per the approved plan , King Fahd Medical City shall have the right to apply the government systems and regulations in this regard.

2. Scope of work: 2‐1 As it has been written in the Annex 3. Validity Period of the Contract: 3‐1 The validity of the contract is 12 months starting from the date of the award letter. 4. Payment Terms: 4‐1 During the contract duration, the payment shall be based on the actual executed works and on the bills of prices and quantities, without regard to any additional quantities added to the project. 4‐2 Contractor shall provide all bills of quantities for the actual executed work in order to be reviewed and approved by the project manager of the KFMC and the members of the project supervisory committee, before submitting a formal statement in order to ensure that there will be no delayed payments. 4‐3 The Contractor shall refer to the accountant of the operation executive department to get a copy of all the requirements for disbursing payment, in order to avoid delay in the disbursement of the dues, and to complete the regulatory papers. 4‐4 The Contractor Dues shall be paid in installments according to the following: 1) 20% upon site handing over, provided that the Contractor shall submit a bank

guarantee equivalent to the amount of the payment, to be deducted from the advance payments made by the contractor.

2) A final payment upon completion of the project

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BILL OF QUANTITIES

EXCAVATION, DEMOLITION AND ALTERATION WORKS

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KING FAHAD MEDICAL CITY

EXCAVATION, DEMOLITION AND ALTERATION WORK

ITEM REFITEM DESCRIPTION QUANTITY UNIT UNIT RATE PRICE

1.0 DEMOLITION AND ALTERATIONS

DEMOLITION

1.1 Housing Group 4 and 5

Demolishing structures and building internal fit out complete

with mechanical and electrical services; grubbing up slabs,

foundations and drains to minimum 300mm below existing

slab levels; removing all demolition materials from site

1.1.1 reinforced concrete framed residential buildings total four

storeys high approximate size on plan 66m x 22m

6 nr


storeys high approximate size on plan 78m x 22m

2 nr


storeys high approximate size on plan 120m girth x 22m wide

3 nr

1.1.4 support buildings, plant rooms etc approximate size on plan

6m x 5m

1 nr


8m x 6m

2 nr


18m x 11m

1 nr


28m x 25m

1 nr

1.1.8 swimming pools approximate internal size on plan 24m x

15m; including removal of tiled walls and floors and all plant

and equipment

2 nr

1.1.9 extra; removing perimeter tiling around pools approximate

area 850m2

1 nr

1.1.10 pair tennis courts and surrounds including nets and

perimeter fencing approximate size on plan 35m x 31m

1 nr

1.1.11 pair tennis / netball courts and surrounds including nets and

perimeter fencing approximate size on plan 35m x 32m

1 nr

Total To Collection

BILL OF QUANTITIES

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BILL OF QUANTITIES

DEMOLITION


The Contractor is to dismantle, pack and stack the items noted

in the four appended schedules after being identified by the

client's projects / maintenance department for retention by

Employer.

1 nr

The Contractor is to schedule out all other salvageable items

and material that he considers can be reused or recycled and

deliver the documentations to the Employer for their

retentions. Schedules are to be provided for the following

structures.

1.1.12 residential buildings approximate size on plan 66m x 22m 6 nr

1.1.13 residential buildings approximate size on plan 78m x 22m 2 nr

1.1.14 residential buildings approximate size on plan 120m girth x

22m wide

3 nr

1.1.15 support buildings approximate size on plan 6m x 5m 1 nr




1.1.19 swimming pools approximate internal size on plan 24m x

15m

2 nr

1.1.20 pair tennis courts approximate internal size on plan 35m x

31m

1 nr

1.1.21 pair tennis / netball courts approximate size on plan 35m x

32m

1 nr

Total To Collection

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BILL OF QUANTITIES

DEMOLITION


The Contractor is to allow for disconnecting and making safe

the following site services and pay all costs that may be

required by the service suppliers

1.1.22 electrical supply 1 item

1.1.23 water supply 1 item

1.1.24 potable water supply 1 item

1.1.25 gas supply oil supply 1 item

1.1.26 oil supply 1 item

1.1.27 drainage disconnections 1 item

The Contractor is to allow for the safe removal of the following

hazardous materials and structures that may be encountered

during the demolition

1.1.28 diesel fuel tanks 1 item

1.1.29 oil tanks 1 item

1.1.30 drainage pump 1 item

1.1.31 asbestor 1 item

The Contractor is to allow for the following investigation work

1.1.32 trial pits and trenches to locate any previously unlocated or

unknown underground services.

1 item

The Contractor is allow for the following site requirements that

may be additional to those stated elsewhere in the tender

documents

1.1.33 shoring and supporting any existing buildings deemed

necessary. Please indicate where you consider this is

required.

1 item

1.1.34 secure steel perimeter fencing 2.5m high approximate length

982m.

1 item

1.1.35 extra; contractors secure access gates and evacuation gates if

required.

1 item

1.1.36 secure steel perimeter poster fencing 15m high approximate

length 446m.

1 item

1.1.37 general site clean up, removal of debris grading exposed

ground etc.

1 item

Total To Collection

of 64




BILL OF QUANTITIES

Collection Page

Page 1

Page 2

Page 3

CARRIED SUMMARY

of 64




BILL OF QUANTITIES

2.0 EXCAVATION AND EARTHWORKS EXCAVATION

2.1 EXCAVATION

The Contractor is advised that the sub‐oil excavations will be

into a mixture of marl and fractured rock encountered at a

depth between 1.5 metres and 3 metres. Irrigation water is

encountered at approximately 4 metres. He is, however,

responsible for confirming the nature of the material and

removing accordingly.

Excavating

2.1.1 basements as drawing AD.02 528,475 m3

2.1.2 extra; allowance for hand digging for a depth of 2 metres as

indicated on drawing number EO.O, width to be determined

by Contractor

544 m

2.1.3 basements to Central Services Building and service tunnel

(CBS)

65,815 m3

2.1.4 working space excavation 28,385 m3

2.1.5 working space excavation to CSB 12,903 m3

2.1.6 extra; forming access ramps into excavations 1 item

Earthwork support

2.1.7 supporting sides of excavations at perimeter 11,222 m2

2.1.8 supporting sides of excavations and perimeter of CSB 6,626 m2

2.1.9 extra; breaking up masonry conncrete, reinforced concret,

piles, sub‐bases etc.

1 item

2.1.10 supporting sides of excavations at change of level 3,804 m2

Disposal

2.1.11 excavated material to tip 556,860 m3

2.1.12 excavated material from CSB to tip 78,718 m3

2.1.13 Grubbing up; removing to tip

2.1.14 general roads, pavings, landscaped areas etc to Housing

Group 4 and 5 minimum 300 deep. Approximate area

50,000m²

1 item

2.1.15 general roads, pavings, landscaped areas etc to Housing

Group 6 minimum 300 deep. Approximate Housing

11,000m²

1 item

Total To Summary

of 64




BILL OF QUANTITIES

3.0 WORK IN CONNECTION WITH LIQUID OXYGEN RELOCATION

3.1 REMOVAL

Removing

3.1.1 grubbing up; removing from site liquid oxygen pipes and

surround

52 m

3.2 EXCAVATION

Excavating

3.2.1 trenches 183 m3

Earthwork support

3.2.2 supporting sides of trenches 305 m2

Disposal

3.2.3 excavated material from site 183 m3

3.3 CONCRETE WORK

Beds

3.3.1 not exceding 450 thick 52 m3

Walls

3.3.2 not exceding 450 thick 44 m3

Shuttering

3.3.3 sides walls 523 m2

Heavy load concrete cover

3.3.4 900x125 218 m

Waterproof membrane; BS 747; non‐torchable felt;

reinforced asphalt coated felt and perforated glass fibre

3.3.5 generally 392 m2

Total To Summary

of 64




BILL OF QUANTITIES

SUMMARY

1.0 Demolition and Alteration

2.0 Excavation and Earthworks Excavation

3.0 Work in Connection with Liquid Oxygen Relocation

TOTAL DEMOLITION AND EXCAVATION

of 64

Appendix,”A”.

SPECIAL INSTRUCTIONS TO CONTRACTORS.

All contractors, to bear in mind that; this is a medical facility. A zero tolerance regime about

disruption of utilities is in force. Therefore it is a pre‐requisite that all contractors understand and

adhere to the following:

Before commencement of demolition / excavation work, the contractor has to obtain the

“construction/ modification works permit” and the separate “hot works permit” duly signed

by the hospital authorities.

As mentioned above that disruption, of water supply for the hospital is not permissible,

therefore a penalty of SR 10,000/‐ (SR. Ten thousand only) will be imposed for every ten (10)

ten minutes, of disruption of utilities. The penalty will be imposed after the first thirty (30)

minutes. That does not mean that the contractor will not be penalized for the first thirty

minutes.

The contractor must keep at hand at all times the necessary tools, workers and materials to

repair and make good any utilities that may be damaged during excavation/ demolition.

The projects department will carry out inspections to ensure the contractors preparedness

in this regard.

It is in the contractor’s interest to coordinate all services re‐ routing with a very detailed and

dedicated coordination with the hospital authorities.

The contractor may be required to obtain separate permissions from the projects and

maintenance department for disconnection or reconnecting any utilities.

If any dewatering is required during excavation, the contractor will deploy sufficient number

of pumps etc for this purpose and dispose of the water in a manner that is approved by the

municipality and the KFMC authorities. If any permits or permissions are required for that,

the contractor is responsible for obtaining the same.

All plants, trees, flower bushes, grass, shrubs and their irrigation system is to be relocated,

and the contractor must coordinate with the landscape department of “KFMC” to do so.

A file of all permits and permissions will be kept at site at all times.

of 64

Appendix B.

EQUIPMENT AND MATERIAL INVENTORY

CIVIL INVENTORY

HOUSING GROUP No. 4

Doors – Ground Floor Building 401,402

SN LOCATION/DESCRIPTION QUANTITY REMARKS

1 Bed Room‐Nurse Studio 42

2 Bath Room 38

3 Toilet 23

4 Dining Room & Laundry 2

5 JC 2

6 Public Toilet 2

7 Lounge T.V. Room 2

8 Electrical Room 1

9 Trash Room 2

Total Quantity 114

Doors – Ground Floor Building 404,405,406


2 Bath Room 28

3 Toilet 16


5 JC 1

6 Public Toilet 1


8 Electrical Room 1

9 Trash Room 2

Total Quantity 82

Doors – Ground Floor Building 403


2 Bath Room 30

3 Toilet 17


5 JC 1

6 Public Toilet 1


8 Electrical Room 1

9 Trash Room 1

Total Quantity 86

of 64

Doors – First to Second Floor Building 401,402


2 Bath Room 46

3 Toilet 54

4 Dining Room 4

5 JC 4

6 Public Toilet 4


8 Electrical Room 2

Total Quantity 218

Doors – First to Second Floor Building 404, 405, 406


2 Bath Room 56

3 Toilet 32


5 JC 2

6 Public Toilet 2


8 Electrical Room 2

Total Quantity 160

Doors – First to Second Floor Building 403


2 Bath Room 64

3 Toilet 36

4 Dining Room 2

5 JC 2

6 Public Toilet 2


8 Electrical Room 2

Total Quantity 178

of 64

HVAC INVENTORY

HOUSING GROUP No. 4

SN EQUIPMENT DESCRIPTION QUANTITY

1 Chiller Unit 16

2 Fan Coil Unit 812

3 Window Type A/C 8

4 Chiller Pump 16

5 EPU 8

6 Exhaust Fan Motor 340

7 Split AC 0

HOUSING GROUP No. 5

SN EQUIPMENT DESCRIPTION QUANTITY

1 Chiller Unit 12

2 Fan Coil Unit 513

3 Window Type A/C 6

4 Chiller Pump 12

5 EPU 6


7 Split AC 0

HOUSING GROUP No. 6

SN EQUIPMENT DESCRIPTION QUANTITY REMARKS

1 Chiller Unit 8

2 Fan Coil Unit 552

3 Window Type A/C 4

4 Chiller Pump 8

5 EPU 4


7 Split AC 4

of 64

ELECTRICAL INVENTORY

HOUSING GROUP No. 401, 402

SN MATERIAL DESCRIPTION QUANTITY REMARKS

1 PSS‐H4‐1 RMU with 2 LBS630A In/ 1 CB200A‐80 Fuse, Transformer 1000KVA13800‐380, Main CB 1600A Draw Out, CB1200A and CB150A

1

2 PSS‐H4‐2 RMU with 2 LBS630A In/ 1 CB200A‐80 Fuse, Transformer 1000KVA13800‐380/220V, Main CB 1600A Draw Out, CB1200Ax2 and CB300A, CB225A

3 PSS‐H4‐3 RMU with 2 LBS630A In/ 1 CB200A‐80 Fuse, Transformer 1000KVA13800‐380/220V, Main CB 1600A Draw Out, CB1200Ax2

4 PSS‐H4‐4 RMU with 2 LBS630A In/ 1 CB200A‐80 Fuse, Transformer 1000KVA13800‐380/220V, Main CB 1600A Draw Out, CB1200A and CB150A

5 PSS‐H4‐5 RMU with 2 LBS630A In/ 1 CB200A‐160 Fuse, Transformer 1500KVA13800‐380/220V, Main CB 3200A Draw Out, CB1200Ax2 and CB300A

6 CALORIFIER Total 16 Calorifier x 180KW

7 TRANSFORMER 1000KVA‐13800‐380/220V

4 Re‐used

8 TRANSFORMER 1500KVA‐13800‐380/220V

1 Re‐used

of 64

9 RING MAIN UNIT GE‐2 LBS630A In / 1 Out 200CB‐80A(Fused)

4 Re‐used

10 RING MAIN UNIT GE‐2 LBS630A In / 1 Out 200CB‐160A(Fused

1

11 MDB‐401A,402A Main CB 1200A, CB600A, CB800A

2

12 SMDB‐401A‐1,402A‐1 Main CB 600A, CB400Ax3, CB250Ax2, CB100Ax3

2

13 MCP‐401A,402A CB 100Ax6

2

14 MAIN CB 800A 1

15 TRANSFORMER 400KVA Dry Type 380/220/127V

2

16 SMDB‐401A‐2,402A‐2 Main CB1200A, CB100Ax1, CB225Ax3

2

17 MDB‐401B,402B Main CB 1200A, CB600A, CB800A, CB225A

2

18 SMDB‐401B‐1,402B‐1 Main CB600A, CB400Ax2, CB250Ax3, CB100Ax3

2

19 MCP‐40B, 402B CB 100A x 6

2

20 MAIN CB 800A 1

21 SMDB‐401B‐2,402B‐2 Main CB1200A, CB225Ax3, CB100Ax8

2

22 LLP‐H4 From 18.3KVA to 42.6 KVA

21

23 CABLES 3Cx300mmsq‐XLPE‐SWA‐PVC‐6.7‐15 KV


25 CABLES 4Cx240mmsq‐XLPE‐SWA‐PVC


27 CABLES 3Cx120mmsq‐XLPE‐PVC

28 CABLES

of 64

4Cx95mmsq‐XLPE‐PVC





HOUSING GROUP No 403, 404, 405, 406

1 MDB‐403 Main CB 1200A, CB800A, CB800A and CB225A

1 Re‐used

2 SMDB‐403‐1 Main CB600A, CB400Ax3, CB250Ax2 and CB100Ax3

1 Re‐used

3 MCP‐403 CB 100A x 6

1 Re‐used

4 MAIN CB 800A 1 Re‐used

5 TRANSFORMER 400 KVA Dry Type 380/220/127 V

2

6 SMDB‐403‐2 Main CB1200A, CB100Ax17

1

7 MDB‐404 Main CB 1200A,CB800A, CB600A and CB225A

3

8 SMDB‐404‐1 Main CB400Ax2, CB225Ax3, CB100Ax3

3

9 MCP‐404 CB100A x 6

3

10 MAIN CB 800A 1

11 SMDB‐404‐2 Main CB1200A, CB225Ax2, CB100Ax12

3

12 LPP‐H403, 404From 18.2KVA to 40.3KVA

26

13 LDP‐H4 32.8KVA & 42.9KVA

2



16 CABLES

of 64

4Cx240mmsq‐XLPE‐SWA‐PVC








of 64

Kingdom of Saudi Arabia المملكة العربية السعودية Ministry of Health وزارة الصحة

King Fahd Medical City هد الطبيةمدينة الملك ف PROJECTS & MAINTENANCE DEPARTMENT دارة المشاريع والصيانة إ

نشاءات والتعديالت المعماريةأمر تصريح عمل لإل CONSTRUCTION / MODIFICATION WORK PERMIT

/ / : Date ال إنشائية Civil Works التاريخ Equipment installation أعم تركيب أجھزة

Replacement بدال أجھزة قديمةإست Others رى أخ :…………………

For Special Conditions, see reverse side الرجاء اإلطالع على خلف الصفحة لإلطالع على الشروط الخاصة باإلدارات Contractor & Phone No. إسم المقاول ورقم ھاتفه : Requesting Department اإلدارة الطالبة: Attached Paper األوراق المطلوبة

- Copy of Contract/P.O. - Names, Copy of Iqama, Photograph Picture for all people who will enter the site. - Official letter with their names, project's manager name and mobile number.

.صورة من العقد / التعميد - أسماء وصور اقامات وصور شخصية لجميع -

األشخاص المخولين بتنفيذ العمل.خطاب رسمي يحوي أسماءھم واسم مدير -

المشروع ورقم ھاتفه الجوال .معلومات عن السيارات واآلليات المطلوب -

إدخالھا للموقع.

Co. Stamp ختم المقاول

Duration of Work مدة تنفيذ العمل :

Start تاريخ بدء العمل :

Finish التاريخ المتوقع لالنجاز:

Description of Work وصف العمل : Project Manager مدير المشروع :

Mobile No. رقم الجوال : Location\ Room No. الموقع/ رقم الغرفة :

PERMITS & INSTRUCTION التصاريح والتعليمات الھامة CONTRACTOR UNDERTAKING : We/ I undertake to adhere with all KFMC departments' special Conditions which is shown in the back of this paper, and if we do not adhere with it, KFMC will stop our work until repairing the error, and we know that stopping time is counted within our contract period. Contractor : Name: Signature:

تعهـد المقاول :

أتعهـــد/ نتعهـــد بـــاإللتزام بكافـــة الشـــروط اخلاصـــة بـــاإلدارات التابعـــة ملدينـــة امللـــك فهـــد الطبيـــة ، واخلاصـــة بإجنـــاز العمل حسب الشروط املبينة خلف هذه الصفحة ، وأنه يف حــال إخاللنــا بــذلك ســيتم إيقافنــا عــن العمــل حلــني

سب من ضمن مدة العقد ، وعليه نوقع :إصالح اخللل ، علماً بأن مدة اإليقاف سوف حتت

المقاول : اإلسم : التوقيع :

Pre – Approval Final Approval SAFTEY & SECURITY DEPARTMENT :

Security Supervisor : Mr. Bader Alyami, Mobile : 0566117279 , ext. 3581 Saftey Supervisor : Mr. Abdulrhman Alshammri, Mobile: 0501868242,Pager: 3615

Name :

Signature :

SAFTEY & SECURITY DEPARTMENT : Security Supervisor : Mr. Bader Alyami, Mobile : 0566117279 , ext. 3581 Saftey Supervisor : Mr. Abdulrhman Alshammri, Mobile: 0501868242,Pager: 3615

Name :

Signature :

INFECTION CONTROL DEPARTMENT : Enviro. Health Supervisor : Mr. Talal Al-Otaibi, Mobile : 0505193892, Pager. 3427

Name :

Signature :

INFECTION CONTROL DEPARTMENT : Enviro. Health Supervisor : Mr. Talal Al-Otaibi, Mobile : 0505193892, Pager. 3427

Name :

Signature :

Support Services Department: Director of Support services: Eng. Turki ALharbi , Ext. 8372 Name :

Signature :

Support Services Department: Director of Support services: Eng. Turki ALharbi , Ext. 8372 Name :

Signature :

MAINTENANCE DIVISION : Maintenance Division, Head : Eng. Ali Alsamrani, Mobile : 0500043131, Ext. 8796

Name :

Signature :

MAINTENANCE DIVISION : Maintenance Division, Head : Eng. Ali Alsamrani, Mobile : 0500043131, Ext. 8796

Name :

Signature :

PROJECTS DIVISION : Projects Division, Head : Eng. Abdullah Alghanem , Mobile : 0554428022, Ext. 8131

Name :

Signature :

PROJECTS DIVISION : Projects Division, Head : Eng. Abdullah Alghanem , Mobile : 0554428022, Ext. 8131

Name :

Signature :

.Permit Noرقم التصريح

of 64

Maintenance Contractor: Name :

Signature :

Maintenance Contractor: Name :

Signature :

WORK PERMIT APPROVAL :

Projects & Maintenance Department, Director

إعتماد إصدار التصريح :

مدير إدارة المشاريع والصيانة

Special Conditions الشروط الخاصة

General Instructions : 1- All below special conditions are binding for the Contractor and should be

read carefully and be obligated to all articles. The Contractor may request a clarification from the administration in case any item is not clear.

2- In case of violating any of the articles below, the city shall regretfully stop the contractor work till the issue is fixed and the contractor meets the conditions and instructions, provided that such holding time shall be considered as part of the contract period.

3- The Contractor shall activate a means of communication with the supervisors of the departments that their numbers are mentioned behind this page, in order to inform and consult them regarding any procedure that may lead to any violation of these conditions and instructions

تعليمات عامة :ا من جميع الشروط الخاصة أدناه ملزمة على المقاول ، وعليه قراءتھا جيداً واإللتزام بجمي -1 اء فيھ ا ج ع م

بنود ، وبإمكان المقاول طلب اإليضاح من اإلدارة في حال عدم وضوح أي شرط .ين إصالح األمر -2 اول لح في حال اإلخالل بأي بند من البنود أدناه ستضطر المدينة آسفة إليقاف عمل المق

ة عقد المقاول .وإلتزامه بھذه الشروط والتعليمات ، علماً بأن مدة اإليقاف ستدخل من ضمن مد المقاول مسئول مسئولية تامة عن أي خلل قد يحدثه إخالله بأحد ھذه الشروط والتعليمات . -3على المقاول تفعيل وسيلة اإلتصال بينه وبين مشرفي اإلدارات المبينة أرقامھم خلف ھذه الصفحة ، وذلك -4

د ھذه الشروط والتعليمات .إلبالغھم واستشارتھم بأي إجراء يقوم به قد يؤدي لخلل في أح

Safety & Security Department's Conditions : 1- The contractor shall be obligated to the place devoted to work, permitted entry and

exit locations, and not to move to other locations without prior coordination with the security supervisor

2- All cars and vehicles of the contractor have to enter the site from the services gate (Gate No. 4), and they shall get the necessary temporary permit to do so.

3- Drivers shall follow the traffic rules and regulations and not to park cars in places other than the allocated parking places.

4- The project manager has to make a prior coordination with the Security Supervisor, in case large vehicles are entering the site.

5- The Contractor shall be obligated not to close or use emergency exits except after coordination with the Security and safety Supervisor. Labors shall wear a uniform on which the Company logo is printed, and they need to carry a temporary permit to be shown while they are at work.

6- The Safety supervisor must be informed in the event of performing any hazardous work like welding, or works resulting in dust or sparks.

7- Not to isolate any of the smoke detectors only after coordination with the safety supervisor, and to inform him if there is any damage to the smoke detectors or sprinklers, during project execution.

8- Considering the safety regulations in the preparation of design drawings for the fire fighting systems.

9- It is necessary to issue the required permits for all employees of the Department of Safety and Security who are working at site.

10- It is necessary to restore all temporary permits to the security and safety supervisor of after the completion of the project

شروط إدارة األمن والسالمة :ال -1 ا وعدم اإلنتق دخول والخروج المسموح بھ على المقاول اإللتزام بالمكان المخصص للعمل ، وأماكن ال

إلى أي موقع آخر دون التنسيق المسبق مع مشرف األمن .ة -2 دمات (بواب ة للخ ة المخصص ن البواب دخول م اول ال ة للمق ات التابع يارات واآللي ى الس م عل ) ، 4رق

والحصول على التصريح المؤقت الالزم لذلك . تقيد السائقين بقواعد وأنظمة المرور وعدم إيقاف السيارات في غير األماكن المخصصة لھا . -3 على مدير المشروع التنسيق المسبق مع مشرف األمن في حال دخول آليات كبيرة للموقع . -4 ارج الطوارىء إال بعد التنسيق مع مشرف األمن والسالمة .اإللتزام بعدم إقفال أو إستخدام مخ -5اء -6 رازه أثن تقيد العمالة بلباس موحد مطبوع عليه شعار الشركة ، مع ضرورة حمل التصريح المؤقت وإب

العمل . إبالغ مشرف السالمة في حال القيام بأي أعمال خطرة كاللحام ، أو أعمال ينتج عنھا غبار أو شرار. -7ة أضرار -8 ي حال وجود أي عدم عزل أي كاشفات للدخان إال بعد التنسيق مع مشرف السالمة ، وإبالغه ف

لكاشفات الدخان أو رشاشات المياه وذلك أثناء تنفيذ المشروع . مراعاة أنظمة السالمة عند إعداد مخططات تصميمية ألنظمة إطفاء الحريق . -9 افة العاملين بالموقع من إدارة األمن والسالمة .ضرورة إصدار التصاريح الالزمة لك -9

ضرورة إعادة جميع التصاريح المؤقتة إلى مشرف األمن والسالمة بعد االنتھاء من المشروع . -10

Infection Control Department's Conditions: 1 - Coordinating with the supervisor of the environmental health before the actual start of project execution to ensure that the contractor is obligated to the requirements of the infection control department. 2 - To isolate the working area from adjacent areas by a wall made of Gibson board so as to be sufficient to prevent the dust leakage from the work area to other areas of the hospital. 3 - Close air conditioning outlets (Return Air) by nylon to prevent the transmission of dust to the hospital. 4 - Coordinating with maintenance department to close the air-conditioning from the work area as possible. 5 - Commitment to the entries and exits of the labors and materials, so as to prevent the transmission of dust to the patient's areas and isolating the same from the entrances and exits of the patients. 6 - Installation of fans to push air out to maintain a negative air pressure inside the working area. 7 - Smoking and eating is strictly forbidden inside the working area and hospitals.

شروط إدارة مكافحة العدوى :قيد المقاول بالشروط الخاصة التنسيق مع مشرف صحة البيئة قبل البدء الفعلي لتنفيذ المشروع للتأكد من ت -1

بإدارة مكافحة العدوى .ع -2 اً لمن ون كافي ورد ، بحيث يك ن الجبسن ب دار م اورة بواسطة ج اطق المج ل عن المن ة العم عزل منطق

تسرب الغبار من منطقة العمل للمناطق األخرى بالمستشفى . لون لمنع انتقال الغبار إلى المستشفى.) بواسطة النايReturn Air إغالق مخارج التكييف (الھواء الراجع -3 التنسيق مع قسم الصيانة إلغالق التكييف عن منطقة العمل ما أمكن ذلك . -4اطق المرضى -5 ى من ار إل ال الغب ع انتق اإللتزام بالمداخل والمخارج المخصصة للعمال والمواد ، وذلك لمن

وعزلھا عن مداخل ومخارج المرضى. ھواء للخارج للمحافظة على ضغط الھواء السلبي داخل منطقة العمل. تركيب مراوح لدفع ال -6 يمنع التدخين وتناول الطعام منعاً باتاً داخل منطقة العمل والمستشفيات. -7

Projects & Maintenance Department's Conditions: 1 - Coordinating with the head of maintenance dept. before starting the following: (Connecting power to electricity rooms, using electric switches, opening the electrical and mechanical rooms, connecting air conditioning systems with existing systems, drilling and wiring works, etc.). 2- The Contractor shall receive all infrastructure drawings for the project site, and the non receiving of such drawings shall not relieve him from the implications that may arise as a result of carrying out any acts that may affect the workflow of the vital systems at buildings 3 - A panel or several panels of the project shall be installed that indicates (the name of the project, the duration of the project, the name of the contractor, the

شروط إدارة المشاريع والصيانة :تخدام -1 التنسيق مع رئيس قسم الصيانة قبل البدء في األمور التالية : (توصيل الكھرباء بغرف الكھرباء، إس

ال األفياش ال ة، أعم ة الحالي ع األنظم ة التكييف م ا، توصيل أنظم اء والميكانيك كھربائية ، فتح غرف الكھرب الحفر والتمديدات الخ ).

ه -2 ن يعفي ع ، ول د استالم الموق ك عن على المقاول استالم كافة مخططات البنية التحتية لموقع المشروع وذلد تطرأ ة عدم استالمه لتلك المخططات من أية عواقب ق ى سير األنظم ؤثر عل د ت ال ق ه أعم ه بأي نتيجة قيام

الحيوية بالمبانياول ، -2 دة المشروع ، اسم المق وضع لوحة أو عدة لوحات خاصة بالمشروع توضح (إسم المشروع ، م

ام اول ، وأرق مدير المشروع من جھة المقاول ، مدير المشروع من جھة المدينة ، شعار المدينة ، وشعار المقال) على أن توضح في مكان واضح وتتضمن عبارة اإلعتذار عن ما يسببه العمل من إزعاج للمرضى اإلتص

والمراجعين.

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project manager from the contractor, the project manager of the city, the city logo, the contractor logo, and contact numbers) provided that they shall be installed in a clear place, and shall include an apology as this work is causing inconvenience to the patients and the visitors. 4 – Providing a suitable size container for waste collection, and to coordinate with the head of projects dept to determine the appropriate place. 4 – It is necessary to remove waste regularly.

ان -3 د المك اريع لتحدي يس قسم المش تم التنسيق مع رئ توفير حاوية ذات حجم مناسب لتجميع المخلفات ، وي المناسب لھا.

ضرورة إزالة المخلفات أوالً بأول . -4

CONTRACTOR UNDERTAKING : We/ I undertake to adhere with all KFMC departments' special Conditions which is shown in upper of this paper, and if we do not adhere with it, KFMC will stop our work until repairing the error, and we know that stopping time is counted within our contract period. Contractor : Name: Signature:

تعھـد المقاول :د ك فھ ة المل ة لمدين اإلدارات التابع ة ب روط الخاص ة الش اإللتزام بكاف د ب د/ نتعھ أتعھ

ا ه في حال إخاللن ة أعاله ، وأن الطبية، والخاصة بإنجاز العمل حسب الشروط المبيناف سوف تحتسب بذلك سيتم إيقافنا عن العمل ل دة اإليق حين إصالح الخلل ، علماً بأن م

من ضمن مدة العقد ، وعليه نوقع :

المقاول : اإلسم :

التوقيع : DISTRIBUTION: (1) Projects & Maintenance Department

(2) Projects Division (3) Maintenance Division (4) Security & Safety Administration

(5) Infection Control Department

التوزيع : صورة إلدارة المشاريع والصيانة. - ريعصورة لقسم المشا - صورة لقسم الصيانة - صورة إلدارة مكافحة العدوى - صورة إلدارة األمن والسالمة -

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Mechanical services Re‐routing from Demolition Area Scope of Work

General:

Shop drawing shall be approved from owner before starting work.

Sewer Water Line:

Dismantling of Sewer water Piping:

1. Existing 300 Ø & 250 Ø line shall be dismantled from MH‐140 to 143B near auditorium. And manholes number 20b, 20C or 20D shall be dismantled.

2. Sewer Piping and Manholes shall be dismantled from number 144 to 152 near Main Hospital.

3. The sewer piping and manholes coming in demolition Limit or Housing Group No. 4, 5 and 6 shall be dismantled as per attached drawing (ref: Drawing NO# D‐M‐02).

4. The 3 No. of 150 Ø and 110 Ø Sewer pipes from inside the main hospital shall be dismantled after connecting with new proposed sewer pipe header in interstitial floor.

5. All sewer pipes exiting from hospital interstitial floor shall be first rerouted and then existing shall be dismantled.

Proposed Sewer water Piping:

1. The proposed 250 Ø line shall be connected from manhole 140 to 20B in direction to MH‐20B near Auditorium.

2. The existing 50 Ø pumped Discharge Line shall be connected with manhole number 143 at near Main Hospital.

3. The New 300 Ø Sewer Water Header shall be installed inside the main hospital at basement interstitial floor. 300 Ø sewer line shall be connected with sewer pump station at Main hospital’s right hand side loading dock.

4. All existing sewer lines leaving the main hospital shall be connected with the proposed sewer water header and follow pipe shaft to enter basement. In the basement level sewer pipe goes out of main hospital and connect with pump station at loading dock.

5. Temporary retained housing block’s sewer line shall be re‐routed towards MH127 and MH127A shall connect with MH135 with 200 Ø pipe.

Storm Water Line:

Dismantling of Storm water Piping:

1. The Storm piping and manholes within demolition Limit or Housing Group No. 4, 5 and 6 shall be dismantled as per attached drawing (ref: Drawing NO# D‐M‐01).

2. The 250 Ø storm line coming from inside the main hospital shall be dismantled after connecting with new proposed Strom water header.

Proposed Strom water Piping:

1. The New 300Ø Storm water Header shall be installed inside the main hospital at interstitial Floor. 300Ø Storm pipe shall be connected with storm water Pump station at RHS of Main hospital in loading dock.

2. One inspection chamber shall be provided as per proposed drawing. 3. The existing manholes 36&36B shall be connected to MH18 with the proposed 200Ø storm

water line.

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4. The existing catch basins CB‐2‐9, CB‐2‐10, CB‐2‐11 shall be connected with catch basin CB‐2‐12 with new 200Ø Storm water pipe on the same line coming from & FG‐213 shall be connected with near MH‐5.

5. The one new manhole is proposed on the 400Ø line between manhole 136& 137 and this new manhole shall be connected with MH‐154 in direction towards MH‐154.

Potable & Fire Fighting Water Line:

Dismantling of Potable & Fire Fighting water Piping:

1. The Potable & Fire fighting water piping under demolition Limit or Housing Group No. 4, 5 and 6 shall be dismantled as per drawing. (# D‐M‐04).

Proposed Potable & Fire water Piping:

1. The 200Ø potable & fire fighting water line is proposed from existing Water line to Main hospital near bulk storage and this pipe shall be supported by new RCC wall.

2. The new proposed 250Ø potable & Fire Fighting water line shall be connected to Main water Network to maintain a loop (see drawing).

3. The 200Ø water pipe shall be relocated out from Demolition boundary near housing group‐2

Liquid Oxygen and Fuel Tank Storage:

Dismantling of Liquid oxygen and Fuel Piping:

1. The existing Liquid oxygen storage tanks and piping shall be removed. 2. The fuel tanks shall be demolished from existing place. And fuel piping shall be dismantled. 3. Proposed oxygen line work shall be done prior to dismantling existing oxygen line to

maintain un interrupted supply to hospital.

Proposed Liquid oxygen and Fuel Piping:

1. Liquid oxygen storage tank shall be installed at new location (see drawing). 2. Two (2) no. of 54 Ø pipes of liquid oxygen shall be installed from new location of liquid

oxygen tanks to main hospital services entry point. These liquid oxygen pipes shall be mounted in concrete trench as per drawing.

3. The new 3.5 Meter road is proposed from end point of existing road near demolition boundary to Substation for access of Fuel Tanker.

4. Underground services below proposed road shall be properly coordinated and approved by owner before starting work.

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Demolition & Excavation English

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