A 15" thick clay layer shown below is consolidated. Calculate the time required to achieve 65% of consolidation. 15' Sand Clay Sand y = 126 pcf y = 122 pcf k = 0.036 in/month eo = 0.3 av = 2.6 x 104 ft²/lbf y = 128 pcf

A 15" thick clay layer shown below is consolidated. Calculate the time required to achieve 65% of consolidation. 15' Sand Clay Sand y = 126 pcf y = 122 pcf k = 0.036 in/month eo = 0.3 av = 2.6 x 104 ft²/lbf y = 128 pcf

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter2: Geotechnical Properties Of Soil

Section: Chapter Questions

Problem 2.12P

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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

A 15" thick clay layer shown below is consolidated. Calculate the time required to achieve 65%
of consolidation.
15'
Sand
Clay
Sand
y = 126 pcf
y = 122 pcf k= 0.036 in/month
eo = 0.3
av = 2.6 x 104 ft²/lbf
y = 128 pcf

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