Report Devanahalli

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TABLE OF CONTENTS

1. Introduction 2

2. Scope of work 2

3. Objectie! " Scope of work 3

#. L$bor$tor% Te!tin& 'rocedure! 3

(. Sc)edu*e of Ine!ti&$tion #

+. ,$ter T$b*e #

-. Sub Soi* 'rofi*e (

/. 0ecoend$tion! (

. Addition$* 0ecoend$tion! -

A''ENI4

I. L$bor$tor% Te!t 0e!u*t! /

II. Bore)o*e Loc$tion '*$n

III. 5r$in Si6e i!tribution Cure! 17

I8. Bore*o&! 13


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SUGUNA ENGINEERING CONSULTANCY GEOTECHNICAL INVESTIGATION

0E'O0T ON T9E SOIL IN8ESTI5ATION FO0 T9E '0O'OSE '0O:ECT

;IAS E4OTICA


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2. Objectie! $nd Scope of ,ork

2.1 Objectie!

'he pri#ary o$5ectives of the Geotechnical Investigation are+

Deter#ination of the nature of the deposits of soil

Deter#ination of the depth and thic-ness of the various soil strata and

their extent in the hori1ontal direction

'he location of ground water and fluctuations in G6'

7$taining soil and roc- sa#ples fro# the various strata

Deter#ination of the engineering properties of the soil and roc- strata that

affect the perfor#ance of the structure, and

Deter#ination of the in*situ properties $y perfor#ing field tests 'o reco##end the type and depth of foundation

'o reco##end i#prove#ents to the wea- soil strata, if any.

2.2 Scope of work

'he scope of wor- includes the following field 8In*situ and la$oratory tests.

2.2.1Fie*d


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2.3 0eport

'his report co#prises of soil profiles, reco##endations regarding allowa$le

$earing capacity, type and depth of foundations and i#prove#ent in $earing

capacity if any = su$#ission of report with relevant reco##endations.

3.7 SC9E>LE OF IN8ESTI5ATION

3.1 ;et)od of Fie*d Ine!ti&$tion

3.2 S$p*in&

4ro# the tandard enetration tests, distur$ed sa#ples have $een collected $y

using split spoon sa#pler. >epresentative 0D sa#ples were procured fro# the

se#i cohesive strata $y using &""## dia#eter and ?(c# long sa#pling tu$es.

'o study the su$soil strata, ( nos. of &("##/


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$ore log sheets.'he depth at which ' tests were conducted in each $orehole

is as follows.

BO0E 9OLE LOCATION. S'T E'T9


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for an allowa$le settle#ent of !( and ?"## and it was reco##ended for !(##

settle#ent.

BC calculations have $een carried out $ased on a foundation of width !."#.

6hile esti#ating the BC%s the water ta$le has $een assu#ed at the $ase of

footing.

4or BC calculations, $oth shear criteria and settle#ent criteria is considered.

'he so called BC values are ta$ulated as under.

For B91

ept)


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2 three layered su$ soil profile has $een o$served in the $ore holes

which consists of $rownish silty sand followed $y grayish $rownsilty sand and underlain $y $rownish white soft disintegratedweathered strata.

BC calculations have $een carried out $ased on a foundation ofwidth !." and settle#ent criteria is considered.

eepage water has not $een o$served in the $orehole location

during the field investigation.

;iniu dept) of found$tion i! 1.( fro t)e ei!tin& dept)

wit) $n e!ti$ted SBC of 1-.7t2.

ept) of found$tion to 1.( $nd bene$t) t)e found$tion !)$**

be we** cop$cted !o $! t)e !urf$ce be een.

Open found$tion! of t%pe i!o*$ted i! recoended. A** t)e

footin& b$!e! $re to be p*$ced $t !$e *ee*.

It i! $di!ed to proide !uit$b*e continuou! p*int) be$ ju!t

$boe t)e footin& top *ee*


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A''ENI4 ILABO0ATO0= TEST 0ES>LTS ')%!ic$* 'ropertie!

BO0E9OLE

SA;'LEE'T9

' 9." &!.?? " < 99

B)?0D &.( :.!9 "

B)! 0D &.( &.:9 &.;& ".&" 9"

Free Swe** Inde

BO0E 9OLE E'T9


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Fi&. 1 BO0E9OLE LOCATION 'LAN

Note Not to Sc$*e

A''ENI4 GIII

9

0OA#7

B93

2(B9(

(B91

1B92

1B9#


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Fi&.2 5r$in Si6e i!tribution cure! for B91

Fi&.3 5r$in Si6e i!tribution cure! for B92

Fi&.# 5r$in Si6e i!tribution cure! for B93

10


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Fi&.( 5r$in Si6e i!tribution cure! for B9#

Fi&.+ 5r$in Si6e i!tribution cure! for B9(

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Report Devanahalli