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A 18-ft thick clay layer in the field (drained on one side) is normally consoli- dated. When the pressure is increased from 0.75 ton/ft² to 1.5 ton/ft², the void ratio decreases from 1.12 to 0.98. The hydraulic conductivity, k, of the clay during the above loading range was found to be 4.3 x 10-7 cm/sec. a. How long (in days) will it take for the clay layer to reach 70% consolidation? b. What is the settlement at that time (that is, at 70% consolidation)?

A 18-ft thick clay layer in the field (drained on one side) is normally consoli- dated. When the pressure is increased from 0.75 ton/ft² to 1.5 ton/ft², the void ratio decreases from 1.12 to 0.98. The hydraulic conductivity, k, of the clay during the above loading range was found to be 4.3 x 10-7 cm/sec. a. How long (in days) will it take for the clay layer to reach 70% consolidation? b. What is the settlement at that time (that is, at 70% consolidation)?

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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11.18
11.18 A 18-ft thick clay layer in the field (drained on one side) is normally consoli- dated. When the pressure is increased from 0.75 ton/ft² to 1.5 ton/ft², the void ratio decreases from 1.12 to 0.98. The hydraulic conductivity, k, of the clay during the above loading range was found to be 4.3 x 10-7 cm/sec. a. How long (in days) will it take for the clay layer to reach 70% consolidation? b. What is the settlement at that time (that is, at 70% consolidation)?
Transcribed Image Text:11.18 A 18-ft thick clay layer in the field (drained on one side) is normally consoli- dated. When the pressure is increased from 0.75 ton/ft² to 1.5 ton/ft², the void ratio decreases from 1.12 to 0.98. The hydraulic conductivity, k, of the clay during the above loading range was found to be 4.3 x 10-7 cm/sec. a. How long (in days) will it take for the clay layer to reach 70% consolidation? b. What is the settlement at that time (that is, at 70% consolidation)?
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