For the conditions show below, calculate the safety factor of the clay against bottom blow-up after excavating 2 m of clay based on the ratio of total pressure and pwp pressure. ] Before excavation 21 I GWT V Silty clay Gs = 2.7 w = 30% k = 3 x 10 m/s 2 m 2 m 6 m Gravel Under artesian pressure

For the conditions show below, calculate the safety factor of the clay against bottom blow-up after excavating 2 m of clay based on the ratio of total pressure and pwp pressure. ] Before excavation 21 I GWT V Silty clay Gs = 2.7 w = 30% k = 3 x 10 m/s 2 m 2 m 6 m Gravel Under artesian pressure

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter16: Soil Improvement And Ground Modification

Section: Chapter Questions

Problem 16.8P

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Concept explainers

Calculation of Settlement

The vertical displacement of the structural foundation due to the loading from the superstructure is known as settlement. It is due to the reduction of air voids present in the soil. The amount of vertical displacement depends on the bearing capacity of the soil on which the foundation is laid. The effect of the settlement depends on the magnitude of settlement, uniformity, and the structural design of the structure. The maximum allowable settlement for residential and office buildings should be less than 18 mm, for industrial buildings, it is 38 mm and for commercial buildings, it is 25 mm.

Question

For the conditions show below, calculate the safety factor of the clay
against bottom blow-up after excavating 2 m of clay based on the ratio of
total pressure and pwp pressure.
]
Before
excavation
21
2 m
2 m
GWT V
Silty clay
Gs = 2.7 w = 30%
6 m
k= 3 x 10-8.
Gravel
Under artesian pressure
I

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