An excavation is to be made in a layer of clay which is 10 m thick and underlain by a sandstone formation. The water table is at the ground surface and the saturated unit weight of clay is 21 kN/m³. The water level in a piezometer installed in the sandstone rises 2.5 m above the ground surface. Draw a representative sketch of the problem and calculate the depth of excavation that can be reached without an upheave of the bottom of excavation.

An excavation is to be made in a layer of clay which is 10 m thick and underlain by a sandstone formation. The water table is at the ground surface and the saturated unit weight of clay is 21 kN/m³. The water level in a piezometer installed in the sandstone rises 2.5 m above the ground surface. Draw a representative sketch of the problem and calculate the depth of excavation that can be reached without an upheave of the bottom of excavation.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter13: Slope Stability

Section: Chapter Questions

Problem 13.12P

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