Q3: A 0.2 m in diameter sand drains are spaced on 3 m centers in a clay soil "square patterns". Tests indicate the vertical cy= 1 x 103 m²/day and the horizontal value= 4c.. Estimate how long it will take for a 6 m depth of this clay to undergo 80 percent consolidation "two-way drainage". What drain spacing would be required to reduce the consolidation time to 6 months?

Q3: A 0.2 m in diameter sand drains are spaced on 3 m centers in a clay soil "square patterns". Tests indicate the vertical cy= 1 x 103 m²/day and the horizontal value= 4c.. Estimate how long it will take for a 6 m depth of this clay to undergo 80 percent consolidation "two-way drainage". What drain spacing would be required to reduce the consolidation time to 6 months?

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 11.8P

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