A laboratory consolidation test on a normally consolidated clay showed the follow- ing results: Void ratio at the end of Stress, Ao' (kN/m²) consolidation, e 140 0.92 212 0.86 The specimen tested was 25.4 mm in thickness and drained on both sides. The time required for the specimen to reach 50% consolidation was 4.5 min. A similar clay layer in the field, 2.8 m thick and drained on both sides, is sub- jected to a similar increase in average effective pressure (i.e., o = 140 kN/m? and oở + Aơ' = 212 kN/m²). Determine the following. a. The expected maximum primary consolidation settlement in the field. b. The length of time required for the total settlement in the field to reach 40 mm. (Assume a uniform initial increase in excess pore water pressure with depth.)

A laboratory consolidation test on a normally consolidated clay showed the follow- ing results: Void ratio at the end of Stress, Ao' (kN/m²) consolidation, e 140 0.92 212 0.86 The specimen tested was 25.4 mm in thickness and drained on both sides. The time required for the specimen to reach 50% consolidation was 4.5 min. A similar clay layer in the field, 2.8 m thick and drained on both sides, is sub- jected to a similar increase in average effective pressure (i.e., o = 140 kN/m? and oở + Aơ' = 212 kN/m²). Determine the following. a. The expected maximum primary consolidation settlement in the field. b. The length of time required for the total settlement in the field to reach 40 mm. (Assume a uniform initial increase in excess pore water pressure with depth.)

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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