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Initiate Research on Effective Stress, Total Stress and Pore Water Pressure. Answer the following: 3. What is Pore Water Pressure? 4. What is Capillary and the Capillary Effects in Soils?

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter9: In Situ Stresses

Section: Chapter Questions

Problem 9.12P

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Initiate Research on Effective Stress, Total Stress and Pore Water Pressure. Answer the following:

3. What is Pore Water Pressure?

4. What is Capillary and the Capillary Effects in Soils?

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Stresses in saturated soil without seepage

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i. A sandstone core sample is saturated 100% with water. Calculate the absolute permeability of the core sample if the water is flowing at 6.21 cubic centimetres per second. The length of the core sample is 14 centimetres and its diameters is 6 centimetres. The pressure differential across the core sample is 15 atmospheric pressure and the water viscosity is 1.2 centipoises. Explain a method of how the permeability of low permeability reservoirs can be ii. improved.