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Following is the variation of the field standard penetration number (№60) in a sand deposit: Depth (m) 1.5 N60 5 3 6 4.5 9 6 7 7.5 9 10 11 The groundwater table is located at a depth of 6 m. Given: the dry unit weight of sand from 0 to a depth of 6 m is 18 kN/m³, and the saturated unit weight of sand for depth 6 to 12 m is 20.2 kN/m³. Using the equation N60 0.5 - {11} Dr = determine the average relative density of sand. (Enter your answer to three significant figures.) Average D₁ = %

Following is the variation of the field standard penetration number (№60) in a sand deposit: Depth (m) 1.5 N60 5 3 6 4.5 9 6 7 7.5 9 10 11 The groundwater table is located at a depth of 6 m. Given: the dry unit weight of sand from 0 to a depth of 6 m is 18 kN/m³, and the saturated unit weight of sand for depth 6 to 12 m is 20.2 kN/m³. Using the equation N60 0.5 - {11} Dr = determine the average relative density of sand. (Enter your answer to three significant figures.) Average D₁ = %

Principles of Foundation Engineering (MindTap Course List)
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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Following is the variation of the field standard penetration number (№60) in a sand deposit: Depth (m) 1.5 N60 5 3 6 4.5 9 6 7 7.5 9 10 11 The groundwater table is located at a depth of 6 m. Given: the dry unit weight of sand from 0 to a depth of 6 m is 18 kN/m³, and the saturated unit weight of sand for depth 6 to 12 m is 20.2 kN/m³. Using the equation N60 0.5 - {11} Dr = determine the average relative density of sand. (Enter your answer to three significant figures.) Average D₁ = %
Transcribed Image Text:Following is the variation of the field standard penetration number (№60) in a sand deposit: Depth (m) 1.5 N60 5 3 6 4.5 9 6 7 7.5 9 10 11 The groundwater table is located at a depth of 6 m. Given: the dry unit weight of sand from 0 to a depth of 6 m is 18 kN/m³, and the saturated unit weight of sand for depth 6 to 12 m is 20.2 kN/m³. Using the equation N60 0.5 - {11} Dr = determine the average relative density of sand. (Enter your answer to three significant figures.) Average D₁ = %
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