soil elastic young modulus values

8/18/2019 Soil Elastic Young Modulus Values

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Soil elastic Young's modulus

Geotechdata.info - Updated 17.09.2013

Soil Young's modulus (!" commonl# $eff$ed to as soil elastic modulus" is an elastic soilpa$amete$ and a measu$e of soil stiffness. %t is defined as the $atio of the st$ess along an a&isoe$ the st$ain along that a&is in the $ange of elastic soil ehaiou$. )he elastic modulus is oftenused fo$ estimation of soil settement and elastic defo$mation anal#sis.

Soil elastic modulus can e estimated f$om lao$ato$# o$ in-situ tests o$ ased on co$$elation *ithothe$ soil p$ope$ties. %n lao$ato$#" it can e dete$mined f$om t$ia&ial test o$ indi$ectl#f$om oedomete$ test. +n field" it can e estimated f$om Standa$d penet$ation test" ,onepenet$ation test "p$essu$emete$ o$ indi$ectl# f$om dilatomete$ test.

Typical values of soil Young's molulus for different soils according to USCS

%n gene$al" the soil stiffness and elastic modulus depends on the consistens# and pacing(densit#! of the soil. )#pical alues of soil Young's modulus a$e gien elo* as guideline.

Typical values of Young's modulus for granular material (MPa) (ased on +$ud / )$ut#2012 complied f$om edi 197 and $at et al. 199!

USCS Description Loose Medium Dense

G4" S4 G$aels5Sand *ell-g$aded 30-60 60-10 10-320S Sand" unifo$m 10-30 30-0 0-60

G8 " S8 Sand5G$ael silt# 7-12 12-20 20-30

Typical values of Young's modulus for coessive material (MPa) (ased on +$ud / )$ut#2012 compiled f$om edi 197 and $at et al. 199!

USCS Description!ery soft to

soft

MediumStiff to

very stiff

"ard

8 Silts *ith slight plasticit# 2. - 6 10 - 1 1 -0 0 - 60

8" , Silts *ith lo* plasticit# 1. - -10 10 - 30 30 -0

,,la#s *ith lo*-mediumplasticit#

0. - -6 6 - 30 30 - 70

,: ,la#s *ith high plasticit# 0.3 - -7 7 - 20 20 - 32

+ +$ganic silts - 0. - - -

+: +$ganic cla#s - 0. - - -

http://www.geotechdata.info/geotest/triaxial-test.htmlhttp://www.geotechdata.info/geotest/triaxial-test.htmlhttp://www.geotechdata.info/geotest/standard-oedometer-test.htmlhttp://www.geotechdata.info/geotest/standard-penetration-test.htmlhttp://www.geotechdata.info/geotest/cone-pressuremeter-test.htmlhttp://www.geotechdata.info/geotest/cone-pressuremeter-test.htmlhttp://www.geotechdata.info/geotest/cone-pressuremeter-test.htmlhttp://www.geotechdata.info/geotest/cone-pressuremeter-test.htmlhttp://www.geotechdata.info/geotest/pressuremeter-test.htmlhttp://www.geotechdata.info/geotest/flat-dilatometer-test.htmlhttp://www.geotechdata.info/geotest/flat-dilatometer-test.htmlhttp://www.geotechdata.info/geotest/flat-dilatometer-test.htmlhttp://www.geotechdata.info/geotest/standard-oedometer-test.htmlhttp://www.geotechdata.info/geotest/standard-penetration-test.htmlhttp://www.geotechdata.info/geotest/cone-pressuremeter-test.htmlhttp://www.geotechdata.info/geotest/cone-pressuremeter-test.htmlhttp://www.geotechdata.info/geotest/pressuremeter-test.htmlhttp://www.geotechdata.info/geotest/flat-dilatometer-test.htmlhttp://www.geotechdata.info/geotest/triaxial-test.html


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#$%$#$&C$S

1. +$ud ;. / )$ut#" G S+% 8+= - < ;


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Soil friction angle is a shear strength parameter of soils. Its denition is derived from

the Mohr-o!lom" fail!re criterion and it is !sed to descri"e the friction shearresistance of soils together #ith the normal e$ective stress.

In the stress plane of Shear stress-e$ective normal stress% the soil friction angle isthe angle of inclination #ith respect to the hori&ontal a'is of the Mohr-o!lom" shearresistance line.

Typical values of soil friction angle for dierent soils according to USCS

Some t(pical val!es of soil friction angle are given "elo# for di$erent USS soil t(pes

at normall( consolidated condition !nless other#ise stated. )hese val!es sho!ld "e!sed onl( as g!idline for geotechnical pro"lems* ho#ever% specic conition of eachengineering pro"lem often needs to "e considered for an appropriate choice ofgeotechnical parameters.

+escription USS

Soil friction angle,

/eference

min ma'Specicval!e

ell graded gravel% sand( gravel% #ith

little or no nes

G 33 40 ,1%,2%

oorl( graded gravel% sand( gravel% #ithlittle or no nes

G 32 44 ,1%

Sand( gravels - ooseG%G

35,3 cited in6

Sand( gravels - +enseG%G

50,3 cited in6

Silt( gravels% silt( sand( gravels GM 30 40 ,1%

la(e( gravels% cla(e( sand( gravels G 27 35 ,1%

ell graded sands% gravell( sands% #ithlittle or no nes

S 33 43 ,1%

ell-graded clean sand% gravell( sands -ompacted

S - - 37,3 cited in6

ell-graded sand% ang!lar grains - oose S 33,3 cited in6

ell-graded sand% ang!lar grains -+ense

S 45,3 cited in6

oorl( graded sands% gravell( sands%

#ith little or no nes

S 30 38 ,1% ,2%

oorl(-garded clean sand - ompacted S - - 39 ,3 cited in


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6

Uniform sand% ro!nd grains - oose S 29,3 cited in6

Uniform sand% ro!nd grains - +ense S 34,3 cited in

6

Sand S% S 39 37 ,9%

oose sand S% S 28 30,5 cited in6

Medi!m sand S% S 30 36,5 cited in6

+ense sand S% S 36 41,5 cited in6

Silt( sands SM 32 35 ,1%

Silt( cla(s% sand-silt mi' - ompacted SM - - 34,3 cited in6

Silt( sand - oose SM 29 33,3 cited in6

Silt( sand - +ense SM 30 34,3 cited in6

la(e( sands S 30 40 ,1%

al(e( sands% sand(-cla( mi' -compacted

S 31,3 cited in6

oam( sand% sand( cla( oam SM% S 31 34 ,9%

Inorganic silts% silt( or cla(e( ne sands%#ith slight plasticit(

M 29 41 ,1%

Inorganic silt - oose M 29 30,3 cited in6

Inorganic silt - +ense M 30 35,3 cited in6

Inorganic cla(s% silt( cla(s% sand( cla(sof lo# plasticit(

29 35 ,1%

la(s of lo# plasticit( - compacted 27,3 cited in6

:rganic silts and organic silt( cla(s oflo# plasticit(

: 22 32 ,1%

Inorganic silts of high plasticit( M; 23 33 ,1%

la(e( silts - compacted M; 25,3 cited in6

Silts and cla(e( silts - compacted M 32,3 cited in6

Inorganic cla(s of high plasticit( ; 19 31 ,1%


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la(s of high plasticit( - compacted ; 18,3 cited in6

:rganic cla(s of high plasticit( :; 19 35 ,1%

oamM% :%

M;% :;27 32 ,9%

Silt oamM% :%M;% :;

25 32 ,9%

la( oam% Silt( la( oamM% :%% M;%:;% ;

17 32 ,9%

Silt( cla(:% %:;% ;

17 32 ,9%

la(% ;%:;% :

17 27 ,9%

eat and other highl( organic soils t 0 10 ,2%

Correlation between SPT-N value, friction angle, and relative density

orrelation "et#een S)-< val!e and friction angle and /elative densit(Me(erho$ 1856

S) 0.3 m - 1 ft

Soi pac?ing/elative +ensit(

,@Ariction angle

,

B 4 Cer( loose B 20 B 30

4 -10 oose 20 - 40 30 - 35

10 - 30 ompact 40 - 60 35 - 40

30 - 50 +ense 60 - 70 40 - 45

D 50 Cer( +ense D 70 D 45

REERENCES

1. S#iss Standard S< 690 010"% haracteristic oeEcients of soils% Fssociationof S#iss /oad and )raEc ngineers

2. H:< . ::SI% SIGMU


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4. Me(erhof% G. 1856. enetration tests and "earing capacit( of cohesionlesssoils. H Soils Mechanics and Ao!ndation +ivision FS% 72SM1.

5. ec?% /.% ;anson%.% and )horn"!rn% ). 1894. Ao!ndation ngineering;and"oo?. ile(% ondon.

6. :"r&!d /. K )r!t(% F.); ;F/+geotechdata.info>parameter>angle-of-friction.html as of Septem"er 14.12.2013.

Soil Co!esion


)he cohesion is a term !sed in descri"ing the shear strength soils. Its denition ismainl( derived from the Mohr-o!lom" fail!re criterion and it is !sed to descri"e the

non-frictional part of the shear resitance #hich is independent of the normal stress.


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In the stress plane of Shear stress-e$ective normal stress% the soil cohesion is theintercept on the shear a'is of the Mohr-o!lom" shear resistance line

Typical values of soil co!esion for dierent soils

Some t(pical val!es of soil cohesion are given "elo# for di$erent soil t(pes. )he soilcohesion depends strongl( on the consistence% pac?ing% and sat!ration condition. )he val!es given "elo# correspond to normall( consolidated condition !nlessother#ise stated. )hese val!es sho!ld "e !sed onl( as g!idline for geotechnicalpro"lems* ho#ever% specic conition of each engineering pro"lem often needs to "econsidered for an appropriate choice of geotechnical parameters.

+escription USS

ohesion ,?a

/eferencemin

ma

'

Speci

c val!eell graded gravel% sand( gravel% #ith littleor no nes

G - - 0 ,1%,2%,3%

oorl( graded gravel% sand( gravel% #ithlittle or no nes

G - - 0 ,1%,2% ,3%

Silt( gravels% silt( sand( gravels GM - - 0 ,1%

la(e( gravels% cla(e( sand( gravels G - - 20 ,1%

ell graded sands% gravell( sands% #ithlittle or no nes

S - - 0 ,1%,2% ,3%

oorl( graded sands% gravell( sands% #ithlittle or no nes

S - - 0 ,1%,2% ,3%

Silt( sands SM - - 22 ,1%

Silt( sands - Sat!rated compacted SM - - 50 ,3%

Silt( sands - ompacted SM - - 20 ,3%

la(e( sands S - - 5 ,1%

la(e( sands - ompacted S - - 94 ,3%

la(e( sands -Sat!rated compacted S - - 11 ,3%

oam( sand% sand( cla( oam - compactedSM%S

50 95 ,2%

oam( sand% sand( cla( oam - sat!ratedSM%S

10 20 ,2%

Sand silt cla( #ith slightl( plastic nes -compacted

SM%S

- - 50 ,3%

Sand silt cla( #ith slightl( plastic nes -sat!rated compacted

SM%S

- - 14 ,3%

Inorganic silts% silt( or cla(e( ne sands%

#ith slight plasticit(M - - 9 ,1%


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Inorganic silts and cla(e( silts - compacted M - - 69 ,3%

Inorganic silts and cla(e( silts - sat!ratedcompacted

M - - 8 ,3%

Inorganic cla(s% silt( cla(s% sand( cla(s of

lo# plasticit( - - 4 ,1%

Inorganic cla(s% silt( cla(s% sand( cla(s oflo# plasticit( - compacted

- - 76 ,3%

Inorganic cla(s% silt( cla(s% sand( cla(s oflo# plasticit( - sat!rated compacted

- - 13 ,3%

Mi't!re if inorganic silt and cla( -compacted

M- - - 65 ,3%

Mi't!re if inorganic silt and cla( - sat!ratedcompacted

M- - - 22 ,3%

:rganic silts and organic silt( cla(s of lo#plasticit(

: - - 5 ,1%

Inorganic silts of high plasticit( - compactd M; - - 10 ,1%

Inorganic silts of high plasticit( - sat!ratedcompacted

M; - - 92 ,3%

Inorganic silts of high plasticit( M; - - 20 ,3%

Inorganic cla(s of high plasticit( ; - - 25 ,1%

Inorganic cla(s of high plasticit( -compacted

; - - 103 ,3%

Inorganic cla(s of high plasticit( - satratedcompacted

; - - 11 ,3%

:rganic cla(s of high plasticit( :; - - 10 ,1%

oam - ompacted

M%:%M;%:;

60 80 ,2%

oam - Sat!rated

M%:%M;%

:;

10 20 ,2%

Silt oam - ompacted

M%:%M;%:;

60 80 ,2%

Silt oam - Sat!rated

M%:%M;%:;

10 20 ,2%

la( oam% Silt( la( oam - ompaced M%

:%%

60 105 ,2%


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M;%:;%;

la( oam% Silt( la( oam - Sat!rated

M%:%%M;%:;%;

10 20 ,2%

Silt( cla(% cla( - compacted

:%%:;%;

80 105 ,2%

Silt( cla(% cla( - sat!rated

:%%:;%;

10 20 ,2%

eat and other highl( organic soils t - -

REERENCES


2. Minnesota +epartment of )ransportation% avement +esign% 2009

3. geotechdata.info>parameter>cohesion as of+ecem"er 15% 2013.

Soil per"eability coe#cientGeotechdata.info - Updated 09.10.2013

)he soil permea"ilit( is a meas!re indicating the capacit( of the soil or roc? to allo#N!ids to pass thro!gh it. It is often represented "( the permea"ilit( coeEcient ?thro!gh the +arc(Os eP!ationL

CQ?i

here v is the apparent N!id velocit( thro!gh the medi!m i is the h(dra!licgradient % and is the coeEcient of permea"ilit( h(dra!lic cond!ctivit( oftene'pressed in m>s


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depends on the relative permea"ilit( of the medi!m for N!id constit!ent often#ater and the d(namic viscosit( of the N!id as follo#s.

Q GammaR#> eta

#here here GammaR# is the !nit #eight of #ater ta is the d(namic viscosit( of#ater is an a"sol!te coeEcient depending on the characteristics of the medi!mm2

)he permea"ilit( coeEcient can "e determined in the la"orator( !sing falling headpermea"ilit( test% and constant head permea"ilit( test. :n the eld% the permea"ilit(can "e estimated !sing !geon test.

Typical values of soil per"eability

Some t(pical val!es of permea"ilit( coeEcient are given "elo# for di$erent soilt(pes. It refers to normall( consolidated condition !nless other#ise mentioned.

)hese val!es sho!ld "e !sed onl( as g!idline for geotechnical pro"lems* ho#ever%specic conition of each engineering pro"lem often needs to "e considered for anappropriate choice of geotechnical parameters.

+escription USSminm>s

ma'm>s

Specicval!em>s

/eference

ell graded gravel% sand(gravel% #ith little or no nes

G 5.00-04 5.00-02 ,1%

oorl( graded gravel% sand(

gravel% #ith little or no nes

G 5.00-04 5.00-02 ,1%

Silt( gravels% silt( sand(gravels

GM 5.00-07 5.00-06 ,1%

Fll!vial sand and gravel GM 4.00-04 4.00-03 ,2K3 in 4

la(e( gravels% cla(e( sand(gravels

G 5.00-08 5.00-06 ,1%

ell graded sands% gravell(sands% #ith little or no nes

S 1.00-07 1.00-06 ,1%

Cer( ne sand% ver( #ellsorted

S 7.40-05 ,5 %

Medi!m sand% ver( #ell sorted S 2.23-03 ,5 %

oarse sand% ver( #ell sorted S 3.68-01 ,5 %

oorl( graded sands% gravell(sands% #ith little or no nes

S 2.55-05 5.35-04,1% ,2K3in 4

lean sands good aP!ifers S-S 1.00-05 1.00-02 ,5%

Uniform sand and gravel S-G 4.00-03 4.00-01 ,2K3 in 4

ell graded sand and gravel#itho!t nes

G-S

4.00-05 4.00-03 ,2K3 in 4

Silt( sands SM 1.00-07 5.00-06 ,1%

http://www.geotechdata.info/geotest/falling-head-permeability-test.htmlhttp://www.geotechdata.info/geotest/falling-head-permeability-test.htmlhttp://www.geotechdata.info/geotest/constant-head-permeability-test.htmlhttp://www.geotechdata.info/geotest/Lugeon_test.htmlhttp://www.geotechdata.info/geotest/Lugeon_test.htmlhttp://www.geotechdata.info/geotest/falling-head-permeability-test.htmlhttp://www.geotechdata.info/geotest/falling-head-permeability-test.htmlhttp://www.geotechdata.info/geotest/constant-head-permeability-test.htmlhttp://www.geotechdata.info/geotest/Lugeon_test.html


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la(e( sands S 5.50-08 5.50-06 ,1% ,5

Inorganic silts% silt( or cla(e(ne sands% #ith slight plasticit(

M 5.00-08 1.00-06 ,1%

Inorganic cla(s% silt( cla(s%

sand( cla(s of lo# plasticit( 5.00-10 5.00-07 ,1%

:rganic silts and organic silt(cla(s of lo# plasticit(

: 5.00-08 1.00-09 ,1%

Inorganic silts of highplasticit(

M; 1.00-10 5.00-07 ,1%

Inorganic cla(s of highplasticit(

; 1.00-10 1.00-09 ,1%

ompacted silt M-M; 9.00-10 9.00-07 ,2K3 in 4

ompacted cla( -; - 1.00-08 ,2K3 in 4

:rganic cla(s of high plasticit( :; 5.00-10 1.00-09 ,1%

eat and other highl( organicsoils

t - -

E"pirical relations for deter"ine t!e soil per"eability coe#cient

Aor Sands% the coeEcient of permea"ilit( can "e estimated from the ;a&enTseP!ationL

is the e$evtive si&e in mm.

REERENCES


2. arter% M. and =entle(% S. 1881. orrelations of soil properties. enetechress !"lishers% ondon.

3. eonards G. F. d. 1862% Ao!ndation


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itation LGeotechdata.info% Soil void ratio%httpL>>geotechdata.info>parameter>permea"ilit(.html as of :cto"er 9% 2013.

soil elastic young modulus values

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