Question

subject: Geotechnical Engineering

book: principle of foundation engineering - Braja M Das

FIGURE P2.9
The soil profile at a site consists of 10 m of gravelly sand
underlain by a soft clay layer. The water table lies 1 m below
the ground level. The moist and saturated unit weights of the
gravelly sand are 17.0 kN/m3 and 20.0 kN/m3, respectively.
Due to some ongoing construction work, it is proposed to
lower the water table to 3 m below the ground level. What
will be the change in the effective stress on top of the soft
clay layer?
2.10
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Transcribed Image Text:FIGURE P2.9 The soil profile at a site consists of 10 m of gravelly sand underlain by a soft clay layer. The water table lies 1 m below the ground level. The moist and saturated unit weights of the gravelly sand are 17.0 kN/m3 and 20.0 kN/m3, respectively. Due to some ongoing construction work, it is proposed to lower the water table to 3 m below the ground level. What will be the change in the effective stress on top of the soft clay layer? 2.10
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Fundamentals of Geotechnical Engineering (MindTap Course List)
Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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