8/10/2019 ITS DUCT Specification

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Construction Operations Maintenance Services

for ITS

Infrastructure in

Abu Dhabi - Phase 1

Tender No.

DOT TIITS 59 12

J. Construction S u p e r ~ s i o n and Monitoring. The Contractor s qualified supervisory

staff sha ll be present in the field during the execution of NDRC works to ensure that the

approved design and method are being followed.

Once construction has begun, automated or manual recording

of

all operational variables,

progress, drive behavior, etc., shall be carried out

to

ensure compliance with the intended

set of operational variables. The record produced shall form a continuous log of all

operational variables against the completed driving distance in a properly recorded time

frame. This record may be used as a tool and reference for inspection and control, and is a

pennanent record for troubleshooting and interpretation of a drive s behavior.

Throughout NDRC construction, existing works (roads, nearby structures, and utilities)

shall be frequently monitored by Contractor personnel under the supervision

of

qualified

staff

to

detect any ground surface movement.

k. Measurement and Payment.

I . Measurement

of

various sizes

of

pipe duct constructed by the NDRC method

will be by linear metre,

of

approved installed pipe duct constructed by the NDRC

method of that size as indicated in the Bill of Quantities and as directed by the

Engineer.

2. Payment for the various size Items, Pipe Duct Constructed by the NDRC

Method, will be at the unit rate per linear metre under the appropriate item of that

size

as

included

in

the Bill

of

Quantitie

s,

which rate shall be considered as full

compensation for

all

the materials, labour, equipment, and appurtenances required

for the construction of

th

e pipe duct constructed by the NDRC method as approved

by the Engineer. No separate measurement and payment will be made for the

geotechnical investigation, site surveys, desigu and engineering analysis, dewatering

system, ground improvement,

all the work associated with the construction

of

entry

and exit pits, and all other work required for the construction

of

the duct constructed

by the NDRC method as described in the

se

Particular Specifications and as directed

by the Engineer. All such works shall be considered as sub

si

diary obligations

to

the

various size Items, Pipe Duct Constructed by the NDRC Method.

17.11.05 PVC Conduit, 4-Way

a General. The Contractor shall supply and in

stall a 4-Way, 100mm diameter PVC

duct bank that is not encased

in

concrete for the length of the project, as detailed in the

Drawings, and as directed by the Engineer. The 4-Way duct bank shall comply with the

requirements of Section 17 Traffic Control System, General Specifications.

The Contractor shall however supply and install a 4-way, 100mm diameter PVC duct that

is

concrete encased,

from

the Road E-20 backbone duct network

to

the ADTMC building

as detailed in the Drawings as directed by the Engineer. The work described herein shall

comply with the applicable Clauses in Section 1702 of the General Specifications.

CONSTRUCTION OPERATIONS

MAINTENANCE SERVICES FOR ITS INFRASTRUCTURE

N

ABU

DHABI-

PHAS E I

SECTION

XVII-llIP

goJ70J Augu 2012

8/10/2019 ITS DUCT Specification

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Construction Operations Maintenance Services

for ITS

Infrastructure

in Abu Dhabi - Phase 1

Tender No.

DOT T ITS S9 12

b. Measurement and Payment. Measurement for the item, PVC Conduit, 4-Way, not

encased

in

concrete, sha

ll

be by tbe linear meter

as

included

in

the Bill

of

Quantities, wbich

amount shall include all materials, labor, tools, cabling, equipment, and other

miscellaneous and subsidiary costs required for the provision

of

4-way duct not encased in

concrete, as mentioned

in

this Particular Specifications.

17.11.06 Install DoT

Type

1 Pullbox Over

Du

Duct

a General.

If

requested by the Department the Contractor sball install a Type I pullbox

over the

Du

ducts in accordance with the requirements of

Du as

directed by the Engineer.

The installation shall include a 2-way, IOOmm , PVC duct bank from the field equipment

cabinet to the Type I pullbox. The installation shall not cause any disruption to the Du

telecommunications network.

b.

Measurement and Payment. Measurement for the item, Install DoT Type I pullbox

Over Du Duct, shall be as the unit item as included in the Bill

of

Quantities, which amount

shall

include all materials, labor, tools, cabling, equipment, and other miscellaneous and

subsidiary costs required for the provision

of

the Type I pullbox over Du Duct. The

measurement and payment for supply of Type I pullbox and 2-way duct bank shall be as

indicated elsewhere in the Bill of Quantities.

17.11.07 DoT 2-Way Duct Link into Du Pullbox

a General. If requested by the Department the Contractor sha ll install a 2-way duct link

into the Du pullbox in accordance with the requirements

of

Du, as directed by the

Engineer. The installation shall include the installation

of

a 2-way,

IOOmm

PVC duct from

the field equipment cabinet pullbox into the

Du

pullbox. The installation sha

ll

not cause

any disruption to the Du telecommunications network.

b.

Measurement and Payment. Measurement for the item, Install DoT Type I pullbox

Over Du Duct, shall be as the unit item as included in the Bill

of

Quantities, which amount

shall include all materials, labor, tools, cabling, equipment, and other miscellaneous and

subsidiary costs required for the provision of the 2-way duct connection into the Du

pullbox. The 2-way duct bank shall be

as

indicated elsewhere in the Bill of Quantities.

17.11.08 Opening Block Conduits and Cleaning Existing Manholes.

a.

General. The Contractor is responsible for clearing any blocked ducts, and

if

required, cleaning the existing manholes/pullboxes from sand,

si

lt, dirt and water on the

proposed cable routes. The Contractor shall arrange all required tools and equipments to

open any blocked conduits that obstruct the laying of the cables. The Contractor shall

util ize a water jet or metal rod or any alternate method to open the blocked conduits, as

approved by the engineer. The Contractor shall be held responsible for damages to any

existing cable runs in the blocked duct, or to any part

of

the duct or pullbox that is caused

by the Contractor s duct-clearing operations.

b.

Measurement and Payment. No separate measurement

or

payment shall be made this

item, unless specifically indicated in the Bill of Quantities. All such works shall be

considered as a subsidiary obligation to the items in the Bill

of

Quantities.

CONSTRUCfION

OPERATIONS MAINTENANCE SERVICES FOR ITS INFRASTRUCTURE

N

ABU DHABI - PHASE 1

SECTION XVII II tPage371] August

2012