What does the confining pressure used in triaxial compression tests on an undisturbed soil sample represent ?

The in-situ effective average principal stress

The in-situ total normal stress

The in-situ total lateral stress

What does the confining pressure used in triaxial compression tests on

1.	What does the confining pressure used in triaxial compression tests on an undisturbed soil sample represent ?
A.	The in-situ total normal stress
B.	The in-situ total lateral stress
C.	The in-situ effective average principal stress
D.	The in-situ shear stress
Answer» C. The in-situ effective average principal stress

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What does the confining pressure used in triaxial compression tests on an undisturbed soil sample represent ?

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