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Geotechnical Investigation Work Contract Document

General Conditions

TUSPL shall provide introduction letters for the commencement of work for concerned

authorities. However, the liaison for smooth conduct of the site work shall be in your scope.

TUSPL shall also provide the location of all boreholes

Geotechnical nvesti!ation contractor will deploy sufficient bore drillin! ri!s and appurtenant

e"uipment at site for this assi!nment.

#obili$ation%de&mobili$ation to %from all sites includin! movement to and from the sites ofspecial e"uipment like platforms, other e"uipment and accessories, arran!ements for water%air

any other items re"uired for drillin! operations shall be made by contractor .

TUSPL shall not be liable in any manner whatsoever for any mishaps % incidents at sites

involvin! contractor's work teams. However contractor shall ensure all safety drills and ade"uate

precautions to avoid mishaps and loss of life%property.

(ll laboratory %field tests shall be carried out strictly in accordance with the !uidelines %

procedures prescribed in the relevant codes of practice of the )S like S* +-. These shall also

be mentioned in investi!ation report.

/o accommodation for site office or for technicians workin! at site shall be provided.

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Scope of Work

The scope of work covers the followin!.

Soil investi!ation in all types of soil strata on land at indicated locations by the 0n!ineer in1har!e of TUSPL.

The investi!ations to be carried out by drillin! bore holes to the depths until rock strata is met

and inside the rock up to 2 m, usin! suitable ri!s and drillin! e"uipment suitable to obtain the

core samples of the strata drilled.

1ollection of core samples from all boreholes, applyin! appropriate preservatives and storin!and transportin! them to the desi!nated location for safe stora!e. The core samples shall be kept

in wooden bo3es at the rate of one bo3 per borehole. The bo3es shall be clearly marked with

identification number of the borehole and its !eo!raphical location.

FIELD TESTS:

Some of the important field activities re"uires to be made a part of investi!ation areHi!hli!hted below*

1ollectin! 4Undisturbed soil sample 5U6S7 4and conductin! Standard

Penetration tests 5SPT7 at every +.8m interval alternately at every chan!e ofStrata for cohesive soil.

1onductin! SPT at every +.8m interval or chan!e of strata for non cohesive

Soil.

9ecord of rock recovery and calculation of 9:6Ground water level shall be recorded and indicated in report.

L!"#$!T#$% TESTS*t is su!!ested to conduct at least followin! tests*

Grain si$e distribution and (tterber! limits.

;ree Swell nde3 test, if free swell inde3 of soil sample is above +

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GE#TEC&'IC!L I'(ESTIG!TI#' $E)#$T $E*+I$E,E'TS

;inal Geotechnical report shall contain the followin!

1.0 Introduction

2.0 Exploration Program with dates of activities

2.1 Exploration Scope Details

2.2 Subsurface Conditions

2.3 Ground Water Table

3.0 Foundation Recommendations

3.1 Foundation Protection

4.0 Field Exploration Procedures

References/Calculations

Annexures

Location Plan of Boreholes with coordinates

Borehole LogsLaboratory Test Results

Sub-surface Profile

Submission of ;inal Geo&Technical nvesti!ation 9eport, includin! revisions,Givin! location maps, GL, bore lo!s, sample calculation of safe bearin! capacity %pile capacities

and settlements and other necessary information re"uired for structural desi!n