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How many days would be required by a clay stratum 6 m thick, draining at both end with a average value of coefficient of consolidation = 50 x 10-4 cm²/sec, to attain 50% of its ultimate settlement.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter11: Ground Improvement

Section: Chapter Questions

Problem 11.9P

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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

How many days would be required by a clay stratum 6 m thick, draining at
both end with a average value of coefficient of consolidation = 50 x 10-4 cm²/sec, to attain 50% of its
ultimate settlement.

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