Chapter
Jan 30, 2014
Chapter 3
Shear Strength
Publication: Slope Stability Analysis by the Limit Equilibrium Method: Fundamentals and Methods
Abstract
Shear strength is one of the most important factors affecting the factor of safety. Subsurface investigations determine the nature and extent of materials that may have an effect on the stability of the slope. This chapter focuses on the following field tests for determining the shear strength of soils in the field: the standard penetration test, the Dutch cone test, the piezocone test, and the vane shear test. Typical laboratory tests that complement field tests include the direct shear test, the triaxial compression test, and the unconfined compression test. The chapter also presents the ranges of shear strength for various materials, including municipal wastes, and the correlations of effective friction angle or undrained shear strength with other index properties. Finally, it talks about the shear strength of granular soils with a curved strength envelope and the back-calculation of shear strength from failed slopes.
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© 2014 American Society of Civil Engineers.
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Published online: Jan 30, 2014
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