Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/94606
Title: Shear strength and pore-water pressure characteristics during constant water content triaxial tests
Authors: Trinh Minh Thu
Rahardjo, Harianto
Leong, Eng Choon
Keywords: DRNTU::Engineering::Civil engineering::Geotechnical
Issue Date: 2006
Source: Trinh, M. T., Rahardjo, H., & Leong, E. C. (2006). Shear Strength and Pore-water Pressure Characteristics during Constant Water Content Triaxial Tests. Journal of Geotechnical and Geoenvironmental Engineering, 132(3), 411–419.
Series/Report no.: Journal of geotechnical and geoenvironmental engineering
Abstract: Shear strength parameters used in geotechnical design are obtained mainly from the consolidated drained (CD) or consolidated undrained (CU) triaxial tests. However in many field situations, soils are compacted for construction purposes and may not follow the stress paths in CD or CU triaxial tests. In these cases, the excess pore-air pressure during compaction will dissipate instantaneously, but the excess pore-water pressure will dissipate with time. Under this condition, it can be considered that the air phase is drained and the water phase is undrained. This condition can be simulated in a constant water content (CW) triaxial test. The purpose of this paper is to present the characteristics of the shear strength, volume change, and pore-water pressure of a compacted silt during shearing under the constant water content condition. A series of CW triaxial tests was carried out on statically compacted silt specimens. The experimental results showed that initial matric suction and net confining stress play an important role in affecting the characteristics of the shear strength, pore-water pressure, and volume change of a compacted soil during shearing under the constant water content condition. The failure envelope of the compacted silt exhibited nonlinearity with respect to matric suction.
URI: https://hdl.handle.net/10356/94606
http://hdl.handle.net/10220/7379
DOI: 10.1061/(ASCE)1090-0241(2006)132:3(411)
Rights: © 2006 ASCE
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles

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