Following results were recorded from a consolidation test on a specimen of saturated clay, each load being maintained constant for 24 hours before the addition of the next increment. Applied stress (kN/m²) Sample thickness (mm) 0 19.70 50 100 200 19.30 19.15 18.85 The water content of the sample at the end of the test was 28 per cent and the specific gravity of the soil particles was 2.72.0 00% - 400 800 0 18.56 18.36 18.90 (a) Calculate the void ratio at the end of each stress range and plot the e- o curve. Compute the coefficient of volume compressibility, m, for an effective stress range of 150-350 kN/m² from the e- o curve. (b) Plot the e log o curve and determine the compression index, C and preconsolidation stress, (Casagrande method). (c) Plot the m curve. (d) Determine the consolidation settlement that may be expected in a 4 m thick layer of this clay for a stress increase from 150 to 350 kN/m², using data from (a), (b) and (c).

Following results were recorded from a consolidation test on a specimen of saturated clay, each load being maintained constant for 24 hours before the addition of the next increment. Applied stress (kN/m²) Sample thickness (mm) 0 19.70 50 100 200 19.30 19.15 18.85 The water content of the sample at the end of the test was 28 per cent and the specific gravity of the soil particles was 2.72.0 00% - 400 800 0 18.56 18.36 18.90 (a) Calculate the void ratio at the end of each stress range and plot the e- o curve. Compute the coefficient of volume compressibility, m, for an effective stress range of 150-350 kN/m² from the e- o curve. (b) Plot the e log o curve and determine the compression index, C and preconsolidation stress, (Casagrande method). (c) Plot the m curve. (d) Determine the consolidation settlement that may be expected in a 4 m thick layer of this clay for a stress increase from 150 to 350 kN/m², using data from (a), (b) and (c).

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter10: Shear Strength Of Soil

Section: Chapter Questions

Problem 10.20P

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