The following results were obtained from a set of consolidation test on a specimen of a clay sample taken from a 4.8 m thick clay layer on one of the construction site which are overlaid and underlain by a thick layer of coarse sand. Pressure (kN/m2) Void Ratio after the test 400 0.96 800 0.78 The initial thickness of the tested sample was 19.6 mm with a moisture content of 18%. The sample takes 8 minutes to achieve 25% of consolidation. 1. Estimate the total consolidation settlement of the clay layer based on the variation of the pressure as given in Table 2. Estimate the time to achieve 50% and 90% degree of consolidation and suggest ONE (1) method to accelerate the consolidation process of the above clay layer. Use sketches to support your answers.

The following results were obtained from a set of consolidation test on a specimen of a clay sample taken from a 4.8 m thick clay layer on one of the construction site which are overlaid and underlain by a thick layer of coarse sand. Pressure (kN/m2) Void Ratio after the test 400 0.96 800 0.78 The initial thickness of the tested sample was 19.6 mm with a moisture content of 18%. The sample takes 8 minutes to achieve 25% of consolidation. 1. Estimate the total consolidation settlement of the clay layer based on the variation of the pressure as given in Table 2. Estimate the time to achieve 50% and 90% degree of consolidation and suggest ONE (1) method to accelerate the consolidation process of the above clay layer. Use sketches to support your answers.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter11: Compressibility Of Soil

Section: Chapter Questions

Problem 11.5P

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