Stress-strain behavior and shear strength of unsaturated residual soil from triaxial tests

Multi-stage triaxial compression tests were performed on undisturbed samples of residual soils from Bukit Timah Granite formation in Singapore. Tests were carried out under two conditions, namely, consolidated undrained test (CU) (i.e. both pore-air and pore-water pressure were not allowed to drain...

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Main Authors: Leong, Eng Choon, Rahardjo, Harianto, Nyunt, T. T.
Other Authors: School of Civil and Environmental Engineering
Format: Conference or Workshop Item
Language:English
Published: 2013
Online Access:https://hdl.handle.net/10356/96866
http://hdl.handle.net/10220/13074
http://www.unsat.eng.ku.ac.th/Proceeding/index.html
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-968662019-12-06T19:35:54Z Stress-strain behavior and shear strength of unsaturated residual soil from triaxial tests Leong, Eng Choon Rahardjo, Harianto Nyunt, T. T. School of Civil and Environmental Engineering Asia-Pacific Conference on Unsaturated Soils: Theory and Practice (5th : 2012 : Pattaya, Thailand) Multi-stage triaxial compression tests were performed on undisturbed samples of residual soils from Bukit Timah Granite formation in Singapore. Tests were carried out under two conditions, namely, consolidated undrained test (CU) (i.e. both pore-air and pore-water pressure were not allowed to drain during shearing) and constant water content test (CW) (i.e. drained pore-air but undrained pore-water condition during shearing). Stress-strain relationships and shear strength of unsaturated soils were studied at different initial matric suctions of 50 kPa, 100 kPa, 200 kPa, and 400 kPa, by performing CU and CW tests. The variations of matric suction during shearing at two different test conditions (CU and CW tests) are also presented. From the experiments, it was observed that the stress-strain relationship from CU test is less stiff than that from CW test. A single relationship of total cohesion intercept with matric suction was obtained from CU and CW tests. Published Version 2013-08-12T08:17:43Z 2019-12-06T19:35:54Z 2013-08-12T08:17:43Z 2019-12-06T19:35:54Z 2012 2012 Conference Paper https://hdl.handle.net/10356/96866 http://hdl.handle.net/10220/13074 http://www.unsat.eng.ku.ac.th/Proceeding/index.html en © 2011 Kasetsart University. This paper was published in Asia-Pacific Conference on Unsaturated Soils: Theory and Practice and is made available as an electronic reprint (preprint) with permission of Kasetsart University. The paper can be found at the following official DOI: [http://www.unsat.eng.ku.ac.th/Proceeding/index.html]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
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language English
description Multi-stage triaxial compression tests were performed on undisturbed samples of residual soils from Bukit Timah Granite formation in Singapore. Tests were carried out under two conditions, namely, consolidated undrained test (CU) (i.e. both pore-air and pore-water pressure were not allowed to drain during shearing) and constant water content test (CW) (i.e. drained pore-air but undrained pore-water condition during shearing). Stress-strain relationships and shear strength of unsaturated soils were studied at different initial matric suctions of 50 kPa, 100 kPa, 200 kPa, and 400 kPa, by performing CU and CW tests. The variations of matric suction during shearing at two different test conditions (CU and CW tests) are also presented. From the experiments, it was observed that the stress-strain relationship from CU test is less stiff than that from CW test. A single relationship of total cohesion intercept with matric suction was obtained from CU and CW tests.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Leong, Eng Choon
Rahardjo, Harianto
Nyunt, T. T.
format Conference or Workshop Item
author Leong, Eng Choon
Rahardjo, Harianto
Nyunt, T. T.
spellingShingle Leong, Eng Choon
Rahardjo, Harianto
Nyunt, T. T.
Stress-strain behavior and shear strength of unsaturated residual soil from triaxial tests
author_sort Leong, Eng Choon
title Stress-strain behavior and shear strength of unsaturated residual soil from triaxial tests
title_short Stress-strain behavior and shear strength of unsaturated residual soil from triaxial tests
title_full Stress-strain behavior and shear strength of unsaturated residual soil from triaxial tests
title_fullStr Stress-strain behavior and shear strength of unsaturated residual soil from triaxial tests
title_full_unstemmed Stress-strain behavior and shear strength of unsaturated residual soil from triaxial tests
title_sort stress-strain behavior and shear strength of unsaturated residual soil from triaxial tests
publishDate 2013
url https://hdl.handle.net/10356/96866
http://hdl.handle.net/10220/13074
http://www.unsat.eng.ku.ac.th/Proceeding/index.html
_version_ 1681036535222239232