IN A 6M THICK STRATUM OF FINE SAND HAVING SUBMERGED DENSITY OF 11KN/M³, QUICK SAND CONDITION OCCURS AT A DEPTH OF 4.2M OF EXCAVATION. WHAT IS THE DEPTH OF LOWERING OF GWT REQUIRED FOR MAKING AN EXCAVATION OF 5M DEEP? (ASSUME DENSITY OF WATER AS 10KN/M³)

IN A 6M THICK STRATUM OF FINE SAND HAVING SUBMERGED DENSITY OF 11KN/M³, QUICK SAND CONDITION OCCURS AT A DEPTH OF 4.2M OF EXCAVATION. WHAT IS THE DEPTH OF LOWERING OF GWT REQUIRED FOR MAKING AN EXCAVATION OF 5M DEEP? (ASSUME DENSITY OF WATER AS 10KN/M³)

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter3: Natural Soil Deposits And Subsoil Exploration

Section: Chapter Questions

Problem 3.14P

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Concept explainers

Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.

Question

IN A 6M THICK STRATUM OF FINE SAND HAVING SUBMERGED DENSITY OF
11KN/M³, QUICK SAND CONDITION OCCURS AT A DEPTH OF 4.2M OF
EXCAVATION. WHAT IS THE DEPTH OF LOWERING OF GWT REQUIRED FOR
MAKING AN EXCAVATION OF 5M DEEP? (ASSUME DENSITY OF WATER AS
10KN/M³)

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