A normally consolidated clay layer is 4 m. (one-way drainage). From the application of a given pressure, the total anticipated primary consolidation settlement will be 80 mm. 1. What is the average degree of consolidation for the clay layer when the settlement is 30 mm? 2. If the average value of Cv for the pressure range is 0.003cm2/sec., how long will it take for 50% settlement to occur 3. How long will it take for 50% consolidation to occur if the clay layer is drained at both top and bottom? 20 40 50 60 80 90 100 0. 0.8 .0.9 0.2 0.4 0.6 Time factor, Ty Average degree of consolidation, U(%)

A normally consolidated clay layer is 4 m. (one-way drainage). From the application of a given pressure, the total anticipated primary consolidation settlement will be 80 mm. 1. What is the average degree of consolidation for the clay layer when the settlement is 30 mm? 2. If the average value of Cv for the pressure range is 0.003cm2/sec., how long will it take for 50% settlement to occur 3. How long will it take for 50% consolidation to occur if the clay layer is drained at both top and bottom? 20 40 50 60 80 90 100 0. 0.8 .0.9 0.2 0.4 0.6 Time factor, Ty Average degree of consolidation, U(%)

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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