Yield stress and volume change behaviour of unsaturated soils

A. N. Zhou; D. Sheng

Yield stress and volume change behaviour of unsaturated soils

A. N. Zhou^*
, D. Sheng

^*Corresponding author for this work

University of Newcastle

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The SFG model (Sheng et al., 2008) provides a consistent explanation of yield stress, shear strength and volume change behaviour of unsaturated soils as functions of suctions. All these functions are based on one single equation that defines the volume change with suction and stress changes. This paper provides a systematic validation of the equation against experimental data. The experimental data used in the paper include those for samples prepared from slurry soils and compacted soils. It is shown that (1) the method currently used to determine yield stresses of unsaturated soils is incorrect, and (2) volume change behaviour of unsaturated soils can well be predicted by the SFG model.

Original language	English
Title of host publication	Unsaturated Soils
Subtitle of host publication	Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils
Pages	879-885
Number of pages	7
State	Published - 2010
Externally published	Yes
Event	4th Asia Pacific Conference on Unsaturated Soils - Newcastle, NSW, Australia Duration: 23 Nov 2009 → 25 Nov 2009

Publication series

Name	Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils

Conference

Conference	4th Asia Pacific Conference on Unsaturated Soils
Country/Territory	Australia
City	Newcastle, NSW
Period	23/11/09 → 25/11/09

Cite this

Zhou, A. N., & Sheng, D. (2010). Yield stress and volume change behaviour of unsaturated soils. In Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils (pp. 879-885). (Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils).

Zhou, A. N. ; Sheng, D. / Yield stress and volume change behaviour of unsaturated soils. Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils. 2010. pp. 879-885 (Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils).

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title = "Yield stress and volume change behaviour of unsaturated soils",

abstract = "The SFG model (Sheng et al., 2008) provides a consistent explanation of yield stress, shear strength and volume change behaviour of unsaturated soils as functions of suctions. All these functions are based on one single equation that defines the volume change with suction and stress changes. This paper provides a systematic validation of the equation against experimental data. The experimental data used in the paper include those for samples prepared from slurry soils and compacted soils. It is shown that (1) the method currently used to determine yield stresses of unsaturated soils is incorrect, and (2) volume change behaviour of unsaturated soils can well be predicted by the SFG model.",

author = "Zhou, \{A. N.\} and D. Sheng",

year = "2010",

language = "英语",

isbn = "9780415804806",

series = "Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils",

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booktitle = "Unsaturated Soils",

note = "4th Asia Pacific Conference on Unsaturated Soils ; Conference date: 23-11-2009 Through 25-11-2009",

}

Zhou, AN & Sheng, D 2010, Yield stress and volume change behaviour of unsaturated soils. in Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils. Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils, pp. 879-885, 4th Asia Pacific Conference on Unsaturated Soils, Newcastle, NSW, Australia, 23/11/09.

Yield stress and volume change behaviour of unsaturated soils. / Zhou, A. N.; Sheng, D.
Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils. 2010. p. 879-885 (Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Sheng, D.

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AB - The SFG model (Sheng et al., 2008) provides a consistent explanation of yield stress, shear strength and volume change behaviour of unsaturated soils as functions of suctions. All these functions are based on one single equation that defines the volume change with suction and stress changes. This paper provides a systematic validation of the equation against experimental data. The experimental data used in the paper include those for samples prepared from slurry soils and compacted soils. It is shown that (1) the method currently used to determine yield stresses of unsaturated soils is incorrect, and (2) volume change behaviour of unsaturated soils can well be predicted by the SFG model.

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Zhou AN, Sheng D. Yield stress and volume change behaviour of unsaturated soils. In Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils. 2010. p. 879-885. (Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils).

Yield stress and volume change behaviour of unsaturated soils

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