A series of direct shear tests were performed on a soil sample. Each test was carried out until the specimen sheared (failed). The laboratory data for the tests are tabulated as follows. Sample No. Normal stress (kN/m²) Shear stress (kN/m²) 1 10 22 20 26 3 30 30 50 37 Determine the shear strength parameters. What is the type of the soil? Plot the relationship between the shear displacement and shear stress also draw the failure envelope.

Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter10: Shear Strength Of Soil
Section: Chapter Questions
Problem 10.7P
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A series of direct shear tests were performed on a soil sample. Each test was carried out until the
specimen sheared (failed). The laboratory data for the tests are tabulated as follows.
Sample No.
Normal stress (kN/m?)
Shear stress (kN/m?)
1
10
22
2
20
26
3
30
30
50
37
Determine the shear strength parameters.
What is the type of the soil?
Plot the relationship between the shear displacement and shear stress also draw the failure
envelope.
Transcribed Image Text:A series of direct shear tests were performed on a soil sample. Each test was carried out until the specimen sheared (failed). The laboratory data for the tests are tabulated as follows. Sample No. Normal stress (kN/m?) Shear stress (kN/m?) 1 10 22 2 20 26 3 30 30 50 37 Determine the shear strength parameters. What is the type of the soil? Plot the relationship between the shear displacement and shear stress also draw the failure envelope.
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