Question
Download Solution PDFWhat is the primary factor that governs the shear strength of sands?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Friction Angle(ϕ): The shear strength of sandy soils primarily depends on the friction angle ϕ, which is a measure of the soil's resistance to sliding along internal surfaces.
Unlike cohesive soils like clays, sands have little to no cohesion, and their shear strength is mainly due to the frictional resistance between the individual sand particles.
The internal friction angle can be determined in the laboratory using methods such as the Direct Shear Test or the Triaxial Test.
Additional Information
Mohr-Coulomb Criteria:
The shear strength of soil is expressed by the Mohr-Coulomb equation:
Last updated on Jul 1, 2025
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