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Normal force, N Shear force, T
Coulomb’s Failure Criterion
Failure plane
N N T T cohesion friction angle
Mohr‐Coulomb Failure Criterion
cohesion friction angle
Shear Strength Chapter 10 Mohrs Failure Criterion 1 4/13/2015 - - PDF document
Shear Strength Chapter 10 Mohrs Failure Criterion 1 4/13/2015 - - PDF document
4/13/2015 Shear Strength Chapter 10 Mohrs Failure Criterion 1 4/13/2015 Coulombs Failure Criterion N Shear force, T Failure plane T friction angle T cohesion N Normal force, N Mohr Coulomb Failure Criterion
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Mohr‐Coulomb Failure Criterion
effective stress cohesion effective friction angle
Mohr‐Coulomb Failure Envelope
A C B
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Mohr‐Coulomb Failure Envelope Failure Plane Orientation
90° ′
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Failure Plane Orientation Direct Shear Test
Chapter 10.4
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Direct Shear Test Direct Shear Test
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Direct Shear Test
Shear Box Porous Stones Load Plates
Direct Shear Test
Shear Box Porous Stones Load Plates
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Direct Shear Test
Vertical LVDT Horizontal LVDT Load Cell Weight Hanger Shear Box
Direct Shear Test
dilation contraction
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Direct Shear Test Direct Shear Test
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Direct Shear Test
tan 0.4598 24.7°
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Direct Shear Test
Load Plate Lower Shear Box Upper Shear Box
Triaxial Shear Test
Chapter 10.5
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Triaxial Shear Test Triaxial Shear Test
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Triaxial Shear Test Triaxial Shear Test
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Consolidated‐Drained Test Consolidated‐Drained Test
uc = 3
Start of Consolidation Phase
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Consolidated‐Drained Test Consolidated‐Drained Test
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Consolidated‐Drained Test Consolidated‐Drained Test
LOOSE SAND
OR NC CLAY
DENSE SAND
OR OC CLAY
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Consolidated‐Drained Test
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Consolidated‐Drained Test Example
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Example Example
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