Answered: H Saturated clay Y- 175 kN/m Sand Yu 16…

Engineering

Civil Engineering

H Saturated clay Y- 175 kN/m Sand Yu 16 kN/m FIG. 8.22 Laver of saturated clay underlain by layer of sand

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 9.8P

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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

A 6 m-thick layer of stiff saturated clay is underlain by a layer of sand (Figure 8.22). The sand is under artesian pressure. Calculate the maximum depth of cut, H, that can be made in the clay

H
Saturated clay
Y- 175 kN/m
Sand
Yu 16 kN/m
FIG. 8.22 Laver of saturated clay underlain by layer of sand

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