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INDUNIL J.M.G. PG/E/GT/2016/01 CE642 20.02.2016 1D CONSOLIDAT ION

8.0 1D Consolidation

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INDUNIL J.M.G.

PG/E/GT/2016/01

CE642

20.02.2016

1D CONSOLIDATION

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DATA

Table 01: Values of MT and K with respect to Temperature

Temperature/ 0C MT K 

23 0.0 0.0132

2! 1.00 0.0130

2" 1.30 0.012#

2$ 1.$" 0.012

Cd % 3 di&

Cm % 1 di&

's % 2.$"

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SPECIMEN CALCULATION

() *ie&e (nal+sis

Considerin, 0.!2mm (perture sie&e si-e data set

ei,ht of a,,re,ate % ".3 ,

ei,ht of coarse a,,re,ate retained on 0.!2 mm si-e sie&e % $.!# ,

ercent retained b+ a,,re,ate % $.!#/".3) 100

% 10.##

Total wei,ht of dr+ soil % 0.00 ,

ercent retained b+ total soil % $.!#/0.00) 100

% .11

Total assin, b+ 0.!2mm si-e sie&e % 10041.0#5#.2"52".!#510.5.11)

% !".3$

6) 7+drometer Method

Consider time in min set of readin, from 7+drometer Method table

Temperature of solution % 23.1 0C

897 % 1# di&

8 7 % 897 5 Cm

% 1# 5 1

% 20 di&

78  % 1$.$"2 0.1$! 8 7% 1$.$"2 0.1$! ; 20

% 13.303 cm

78 / t % 13.303/

% 1.$$3 cm/min

< % K 78 / t)1/2

6+ interpolatin, from Table 01

=or T % 23.1 0C K % 0.0131

< % 0.0131 ; 1.$$3)1/2

% 0.01 mm

 p  % 100 8 75MT4Cd)/ *

6+ interpolatin, from Table 01

=or T % 23.1 0C MT % 0.3

p % 100 2050.343)/ 0

% 22.1$

TABULATION

Table 02: article *i-e Vs assin, for *ie&e (nal+sis and 7+drometer Method

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Method of 

(nal+sis

article *i-e /

mm assin,

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*ie&e (nal+sis

!." #.#1

2.00 #.$$

0.! $!.1

0."# "3.!

0.!2 !".3$

0.2" 3$.31

0.1" 31.10.0" 2.!#

7+drometer 

Method

0.0$ 2".#2

0.0! 2!.$

0.03! 23.!2

0.02! 23.!2

0.01 22.1

0.012 20.#2

0.00 1#.$

0.00$ 1.!2

0.002 13.!2

CALCULATION

=rom ,radation cur&e

<$0 % 0." mm

<30 % 0.1! mm

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<10 % 0.0012 mm

Cu % <$0 / <10

% 0."/ 0.0012

% $2"

Cc % <30)2 / <$0 ; <10)

% 0.1!2 / 0." ; 0.0012)

% 22

>ffect of erroneous 's of soil can be shown as followin, calculations

's % s/ Vs ; ?w)

Vs % s/ 's ; ?w)

V& % 1 4 Vs

e % V& / Vs

(ssume ?d % 1. ,/cm3

's % 2.$ 's % 2.Vs cm3) 0.$2 0.$$

V& cm3) 0.32 0.333

e 0.! 0.!##

ercent decrease in &oid ratio due to error specific ,ra&it+ % 0.!/0.!## ; 100

% #.

<ue to erroneous 's &oid ratio has been decreased from 2.2. This affects all parameters which are

calculated usin, &oid ratio without specific ,ra&it+ parameter.

RESULTS

=rom ,radation cur&e soil t+pe is silt+ sand M*) and well ,raded.

Table 03: >stimation of Ma@eup of *oil *ample

T+pe of *oil (mount )

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Cla+ 13."

*ilt 12.!

*and $3.

'ra&el 10.!

Table 0!: Cu and Cc of *oil *ample

arameter Value

Cu $2"

Cc 22