Q#4. The following are the results of four drained direct shear tests on undisturbed normally consolidated clay samples having a diameter of 50 mm. and height of 25 mm Test No. Normal Force (N) Shear Force at Failure (N) 1 67 23.3 133 46.6 44.6 132.3 213 4 369 Draw a graph for shear stress at failure against the normal stress and determine the drained angle of friction from the graph. (Note: Use excel for calculation and drawing the graph).

Principles of Foundation Engineering (MindTap Course List)
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Author:Braja M. Das, Nagaratnam Sivakugan
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Chapter3: Natural Soil Deposits And Subsoil Exploration
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Q#4. The following are the results of four drained direct shear tests on undisturbed normally consolidated
clay samples having a diameter of 50 mm. and height of 25 mm
Test No.
Normal Force (N)
Shear Force at Failure (N)
1
67
23.3
2
133
46.6
44.6
132.3
3
213
4
369
Draw a graph for shear stress at failure against the normal stress and determine the drained angle of friction
from the graph. (Note: Use excel for calculation and drawing the graph).
Transcribed Image Text:Paragraph Styles Q#4. The following are the results of four drained direct shear tests on undisturbed normally consolidated clay samples having a diameter of 50 mm. and height of 25 mm Test No. Normal Force (N) Shear Force at Failure (N) 1 67 23.3 2 133 46.6 44.6 132.3 3 213 4 369 Draw a graph for shear stress at failure against the normal stress and determine the drained angle of friction from the graph. (Note: Use excel for calculation and drawing the graph).
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