Example 9.2: A clay soil, tested in a consolidometer, showed a decrease in void res•m 1.20 to 1.10 when the presure was increased from 0.25 to 0.50 kgflem?. Calculate to. efficient of compressibility (a) and the coefficient of volume compressibility (m). If t•ficient of consolidation (c,) determined in the test for the given stress increment u m?/year, calculate the coefficient of permeability in cm/s.If the sample tested at the site was taken from a clay layer 3.0 m in thickness, determin consolidation settlement resulting from the given stress increment. lution: A clay soil, tested in a consolidometer, showed a decrease in void ratiofrom 1.20 to 1.10 when the presure was increased from 0.25 to 0.50 kgf/cm². Calculate thecoefficient of compressibility (a) and the coefficient of volume compressibility (m). If thecoefficient of consolidation (c) determined in the test for the given stress increment was10 m²/year, calculate the coefficient of permeability in cm/s. O ferd ses osis ass snoIf the sample tested at the site was taken from a clay layer 3.0 m in thickness, determinethe consolidation settlement resulting from the given stress increment.

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Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter12: Shear Strength Of Soil

Section: Chapter Questions

Problem 12.18P

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Example 9.2: A clay soil, tested in a consolidometer, showed a decrease in void res •m 1.20 to 1.10 when the presure was increased from 0.25 to 0.50 kgflem?. Calculate to. efficient of compressibility (a) and the coefficient of volume compressibility (m). If t •ficient of consolidation (c,) determined in the test for the given stress increment u m?/year, calculate the coefficient of permeability in cm/s. If the sample tested at the site was taken from a clay layer 3.0 m in thickness, determin consolidation settlement resulting from the given stress increment. lution:

A clay soil, tested in a consolidometer, showed a decrease in void ratio
from 1.20 to 1.10 when the presure was increased from 0.25 to 0.50 kgf/cm². Calculate the
coefficient of compressibility (a) and the coefficient of volume compressibility (m). If the
coefficient of consolidation (c) determined in the test for the given stress increment was
10 m²/year, calculate the coefficient of permeability in cm/s. O ferd ses osis ass sno
If the sample tested at the site was taken from a clay layer 3.0 m in thickness, determine
the consolidation settlement resulting from the given stress increment.

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