1. For the soil system presented below, calculate and draw diagrams of distributions of the total and effective stresses and pore water pressure. Assume a downward water flow with a velocity of 0.000,008 cm/s.

1. For the soil system presented below, calculate and draw diagrams of distributions of the total and effective stresses and pore water pressure. Assume a downward water flow with a velocity of 0.000,008 cm/s.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter9: Consolidation

Section: Chapter Questions

Problem 9.20CTP

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Concept explainers

Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.

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1. For the soil system presented below, calculate and draw diagrams of distributions of the total
and effective stresses and pore water pressure. Assume a downward water flow with a velocity of
0.000,008 cm/s.
SANDY CLAY
SILT e=0.5
Gs = 2.6
S=32%
Y = 17.4 kN/m3
k=0.00002 cm/s
SILTY SAND
Y
w = 18%
S = 40%
= 17.8 kN/m3
sat
k=0.004 cm/s
6m
3 m
2 m
5m

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where is the equation to solve for G coming from? 17.4 = (9.81(G+0.45*G*0.4))/(1+0.45*G)

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