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(c) A 10.0m layer of clay beneath an embankment is free to drain to a drainage layer at the top and to weathered bedrock
Posted: Sat May 21, 2022 1:30 pm
by answerhappygod
- C A 10 0m Layer Of Clay Beneath An Embankment Is Free To Drain To A Drainage Layer At The Top And To Weathered Bedrock 1 (65.39 KiB) Viewed 16 times
- C A 10 0m Layer Of Clay Beneath An Embankment Is Free To Drain To A Drainage Layer At The Top And To Weathered Bedrock 2 (65.39 KiB) Viewed 16 times
(c) A 10.0m layer of clay beneath an embankment is free to drain to a drainage layer at the top and to weathered bedrock at the bottom. Laboratory tests have found that the coefficient of consolidation of the clay, cy, was 2.5 m²/year. (1) Assuming two-way drainage, determine the time required for 70% and 90% of the ultimate consolidation settlement to take place? (ii) Comment on the results of (1) above, mentioning the relative difference in time between reaching 70% and 90% consolidation. (1) Suggest two methods of speeding up the time for consolidation settlement of the embankment? (60 marks) Alde Memoire: 7. d? cy t U, 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1,0 T. 0.008 0.031 0.071 0.126 0.197 0.287 0.403 0.567 0.848