Bearing Capacity Characteristic of Unsaturated Granular Soils

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Abstract:

An experimental program of laboratory bearing tests was performed to characterize the bearing capacity of foundation on unsaturated granular soils. All tests were performed by pushing a circular rod on the surface of compacted sand specimens with different values of matric suction until failure. The test results show an increase in ultimate bearing capacity with increasing matric suction at low suction value but a decrease in that at high level of suction. The comparisons between the test results and simulations using the expressions proposed in this paper are presented and discussed. Good agreements are achieved for all testing values of suction.

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Advanced Materials Research (Volumes 261-263)

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989-993

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May 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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[1] K. Terzaghi, Theoretical soil mechanics, Wiley, New York (1943).

Google Scholar

[2] G.G. Meyerhof, Some recent research on the bearing capacity of foundations, Can. Geotech. J. 1(1) (1963), 16–26.

DOI: 10.1139/t63-003

Google Scholar

[3] J.B. Hansen, A revised extended formula for bearing capacity, Danish Geotechnical Institute 28 (1968).

Google Scholar

[4] M.R. Cunningham, A.M. Ridley, K. Dineen and J.B. Burland, The mechanical behaviour of a reconstituted unsaturated silty clay, Geotechnique 53(2) (2003), 183–194.

DOI: 10.1680/geot.2003.53.2.183

Google Scholar

[5] A.N. Zhou, D. Sheng, Yield stress, volume change and shear strength behaviour of unsaturated soils: validation of the SFG model, Can. Geotech. J. 46(9) (2009), 1034–1045.

DOI: 10.1139/t09-049

Google Scholar

[6] A. Uchaipichat, Prediction of shear strength for unsaturated soils under drying and wetting processes, Electron. J. Geotech. Eng. 15(K) (2010), 1087–1102.

Google Scholar

[7] A. Uchaipichat and E. Man-koksung, Simulations of bearing capacity of foundation on unsaturated granular soils, Appl. Mech. Mater., accepted.

DOI: 10.4028/www.scientific.net/amm.52-54.1400

Google Scholar

[8] A.W. Bishop and G.E. Blight, Some aspects of effective stress in saturated and unsaturated soils.'' Geotechnique 13 (1963), 177–197.

DOI: 10.1680/geot.1963.13.3.177

Google Scholar

[9] A.R. Russell and N. Khalili, A unified bounding surface plasticity model for unsaturated soils, Int. J. Num. Analy. Meth. Geomech. 30 (3) (2006), 181-212.

DOI: 10.1002/nag.475

Google Scholar

[10] ASTM Standard D5298, Standard Test Method for Measurement of Soil Potential (Suction) Using Filter Paper, ASTM International, West Conshohocken, PA, 2003, DOI: 10.1520/D5298-10, www.astm.org (2010).

Google Scholar