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(c) A clay layer of 10 m thick with an average bulk unit weight y = 18.5 kN/m³ overlies a sand aquifer. It was observed to begin an excavation base failure due to artesian water pressure at an excavation depth of 6 m into this clay layer. If a piezometer is installed into the sand aquifer determine the depth to the water level in the piezometer from the surface.

(c) A clay layer of 10 m thick with an average bulk unit weight y = 18.5 kN/m³ overlies a sand aquifer. It was observed to begin an excavation base failure due to artesian water pressure at an excavation depth of 6 m into this clay layer. If a piezometer is installed into the sand aquifer determine the depth to the water level in the piezometer from the surface.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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(c) A clay layer of 10 m thick with an average bulk unit weight y = 18.5 kN/m³ overlies a sand aquifer. It was observed to begin an excavation base failure due to artesian water pressure at an excavation depth of 6 m into this clay layer. If a piezometer is installed into the sand aquifer determine the depth to the water level in the piezometer from the surface.
Transcribed Image Text:(c) A clay layer of 10 m thick with an average bulk unit weight y = 18.5 kN/m³ overlies a sand aquifer. It was observed to begin an excavation base failure due to artesian water pressure at an excavation depth of 6 m into this clay layer. If a piezometer is installed into the sand aquifer determine the depth to the water level in the piezometer from the surface.
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