Define and explain briefly Over Consolidation Ratio (OCR) with the help of example. (B) Briefly explain in your own words the shear strength and volume change behavior of sand in both loose and dense state condition in direct shear test.

Define and explain briefly Over Consolidation Ratio (OCR) with the help of example. (B) Briefly explain in your own words the shear strength and volume change behavior of sand in both loose and dense state condition in direct shear test.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter10: Shear Strength Of Soil

Section: Chapter Questions

Problem 10.20P

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Concept explainers

Consolidation parameters

Consolidation is the process of expulsion of pore water present in the voids of soil solids under the pressure of the applied load. This is a quick process in the case of coarse-grained soils since the permeability is high due to the presence of more voids, while it is a slow and gradual process in the case of clayey soil as the permeability of clay is less. An example of consolidation is the settlement of soil under a building due to the load coming from the building.

Question

Q # 5.

(A) Define and explain briefly Over Consolidation Ratio (OCR) with the help of example.

(B) Briefly explain in your own words the shear strength and volume change behavior of sand in both loose and dense state condition in direct shear test.

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