At the site of a proposed structure the variation of the SPT number (N60) with depth in a deposit of normally consolidated sand is as given below: Depth, m: 1.5 3.0 4.5 6.0 7.5 9.0 NG0: 6 8 9 8 13 14 The ground water table (W.T) is located at a depth of 6.5 m. The dry unit weight y dry of the sand above W.T is 18 kN/m³, and its saturated unit weight ysat below W.T is 20.2 kN/m³. (a) Correct the SPT numbers. (b) Select an appropriate SPT corrected number (No) for use in designs. Assume the given depths are located within the influence zone (zone of major stressing).

At the site of a proposed structure the variation of the SPT number (N60) with depth in a deposit of normally consolidated sand is as given below: Depth, m: 1.5 3.0 4.5 6.0 7.5 9.0 NG0: 6 8 9 8 13 14 The ground water table (W.T) is located at a depth of 6.5 m. The dry unit weight y dry of the sand above W.T is 18 kN/m³, and its saturated unit weight ysat below W.T is 20.2 kN/m³. (a) Correct the SPT numbers. (b) Select an appropriate SPT corrected number (No) for use in designs. Assume the given depths are located within the influence zone (zone of major stressing).

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 3.6P

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