Determine the penetration depth for a 30 cm dia concrete pile which is required to carry a load of 1200 KN at a factor of safety 3.0. The soil consists of silty sand up to a depth of 10 m in which the average cone resistance qcav = 4400 KPA. Silty sand is underlain by dense sand. The average cone resistance increases to 12000 kPa with in depth 10 to 12 m and to 15000 KPA below 12 m.

Principles of Foundation Engineering (MindTap Course List)
9th Edition
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter18: Sheet-pile Walls
Section: Chapter Questions
Problem 18.2P
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Determine the penetration depth for a 30 cm dia concrete pile which is required to carry a load of 1200 KN at a factor of safety 3.0. The soil consists of silty sand up to a depth of 10 m in which the average cone resistance qcav = 4400 KPA. Silty sand is underlain by dense sand. The average cone resistance increases to 12000 kPa with in depth 10 to 12 m and to 15000 KPA below 12 m.

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