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3.15In a site consisting of normally consolidated clean sands,the water table is at 10 ft depth. The average unit weight ofthe sand above and below the water table is 111.5 lb/ft3 and125.0 lb/ft3, respectively. At a 25 ft depth, Nso was reportedas 26. Determine the following:a. (N160 using Liao and Whitman's (1986) equation for CN[Eq. (3.13)]b. D, using Skempton's (1986) correlation [Eq. (3.28)]c. Friction angle using Schmertmann's (1975) correlation[Eq. (3.30)]d. Modulus of elasticity using Kulhawy and Mayne's (1990)correlation [Eq. (3.32)]

Question
3.15
In a site consisting of normally consolidated clean sands,
the water table is at 10 ft depth. The average unit weight of
the sand above and below the water table is 111.5 lb/ft3 and
125.0 lb/ft3, respectively. At a 25 ft depth, Nso was reported
as 26. Determine the following:
a. (N160 using Liao and Whitman's (1986) equation for CN
[Eq. (3.13)]
b. D, using Skempton's (1986) correlation [Eq. (3.28)]
c. Friction angle using Schmertmann's (1975) correlation
[Eq. (3.30)]
d. Modulus of elasticity using Kulhawy and Mayne's (1990)
correlation [Eq. (3.32)]
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3.15 In a site consisting of normally consolidated clean sands, the water table is at 10 ft depth. The average unit weight of the sand above and below the water table is 111.5 lb/ft3 and 125.0 lb/ft3, respectively. At a 25 ft depth, Nso was reported as 26. Determine the following: a. (N160 using Liao and Whitman's (1986) equation for CN [Eq. (3.13)] b. D, using Skempton's (1986) correlation [Eq. (3.28)] c. Friction angle using Schmertmann's (1975) correlation [Eq. (3.30)] d. Modulus of elasticity using Kulhawy and Mayne's (1990) correlation [Eq. (3.32)]

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check_circleAnswer
Step 1

Given :

MathML (base64):PG1hdGggbWF0aHNpemU9IjE2Ij4KICAgIDxtc3ViPgogICAgICAgIDxtdGV4dD5OPC9tdGV4dD4KICAgICAgICA8bXRleHQ+NjA8L210ZXh0PgogICAgPC9tc3ViPgogICAgPG10ZXh0Pj0yNjwvbXRleHQ+CjwvbWF0aD4=

 

Step 2

a. Using Liao and Whitman\\\'s (1986) equation 

MathML (base64):PG1hdGg+CiAgICA8bXN1YiBtYXRoc2l6ZT0iMTYiPgogICAgICAgIDxtc3VwPgogICAgICAgICAgICA8bWk+JiN4M0MzOzwvbWk+CiAgICAgICAgICAgIDxtbz4mI3gyMDMyOzwvbW8+CiAgICAgICAgPC9tc3VwPgogICAgICAgIDxtaT56PC9taT4KICAgIDwvbXN1Yj4KPC9tYXRoPg== is vertical effective stress where the sample was recovered.

 

 

 

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Step 3

is the submerged unit weight of water

 

...
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