A 10 m thick clay layer with single drainage settles 10 cm. in 5 year. The coefficient of consolidation (Cv) for this clay was found to be 0.544x102 cm²/s. Compute the ultimate consolidation settlement and find out how long it will take to settle to 60% of this amount.

A 10 m thick clay layer with single drainage settles 10 cm. in 5 year. The coefficient of consolidation (Cv) for this clay was found to be 0.544x102 cm²/s. Compute the ultimate consolidation settlement and find out how long it will take to settle to 60% of this amount.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter9: Consolidation

Section: Chapter Questions

Problem 9.17P

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Concept explainers

Calculation of Settlement

The vertical displacement of the structural foundation due to the loading from the superstructure is known as settlement. It is due to the reduction of air voids present in the soil. The amount of vertical displacement depends on the bearing capacity of the soil on which the foundation is laid. The effect of the settlement depends on the magnitude of settlement, uniformity, and the structural design of the structure. The maximum allowable settlement for residential and office buildings should be less than 18 mm, for industrial buildings, it is 38 mm and for commercial buildings, it is 25 mm.

Question

B.)
A 10 m thick clay layer with single drainage settles 10 cm. in 5 year. The
coefficient of consolidation (C) for this clay was found to be 0.544x102 cm²/s.
Compute the ultimate consolidation settlement and find out how long it will take
to settle to 60% of this amount.

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