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a certain soil has c'=12 kPa and O'=32°C. The major and minor total principal stresses (0,and 03) = 348 and 160 kPa, respectively, and the pore water pressure at this point is 96kPa. a) Draw the failure envelope and Mohr circle and determine if a shear failure will occur at this point in the soil. Hint: use AutoCAD or Civil 3D to draw two Mohr circles, and the envelope based on scale. b) If so, determine: the angle between the failure plane and the plane on which the major principal stress acts.

a certain soil has c'=12 kPa and O'=32°C. The major and minor total principal stresses (0,and 03) = 348 and 160 kPa, respectively, and the pore water pressure at this point is 96kPa. a) Draw the failure envelope and Mohr circle and determine if a shear failure will occur at this point in the soil. Hint: use AutoCAD or Civil 3D to draw two Mohr circles, and the envelope based on scale. b) If so, determine: the angle between the failure plane and the plane on which the major principal stress acts.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A certain soil has \( c' = 12 \, \text{kPa} \) and \( \Phi' = 32^\circ \). The major and minor total principal stresses \((\sigma_1 \text{ and } \sigma_3) = 348 \text{ and } 160 \, \text{kPa}\), respectively, and the pore water pressure at this point is \( 96 \, \text{kPa} \). a) Draw the failure envelope and Mohr circle and determine if a shear failure will occur at this point in the soil. Hint: use AutoCAD or Civil 3D to draw two Mohr circles, and the envelope based on scale. b) If so, determine the angle between the failure plane and the plane on which the major principal stress acts.
Transcribed Image Text:A certain soil has \( c' = 12 \, \text{kPa} \) and \( \Phi' = 32^\circ \). The major and minor total principal stresses \((\sigma_1 \text{ and } \sigma_3) = 348 \text{ and } 160 \, \text{kPa}\), respectively, and the pore water pressure at this point is \( 96 \, \text{kPa} \). a) Draw the failure envelope and Mohr circle and determine if a shear failure will occur at this point in the soil. Hint: use AutoCAD or Civil 3D to draw two Mohr circles, and the envelope based on scale. b) If so, determine the angle between the failure plane and the plane on which the major principal stress acts.
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