Answered: A 3.6-m thick layer (double drainage)…

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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ASAP PLS I'LL RATE

A 3.6-m thick layer (double drainage) of saturated clay
under a surcharge loading underwent 95% primary
consolidation (Ty = 1.129) in 90 days. Find the
coefficient of consolidation (in cm²/s) for the pressure
range.
1.14 x 10° cm²/s
4.70 x 10° cm²/s
3.12 x 10° cm?/s
O 6.71 x 10 cm²/s

Transcribed Image Text:A soil profile is shown in the figure. If a uniformly distributed load, Ao, is applied at the ground surface, what is the settlement of the clay layer caused by primary consolidation if the clay is normally consolidated. Use C, = Cc. Ao = 100 kN/m? 2 m Ydry = 14 kN/m3 GWT 4 m Sand Ysat = 18 kN/m³ Ysat = 19 kN/m³ 3.5 m Clay Void ratio, e = 0 LL = 40 191 mm 202 mm 178 mm 183 mm

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