Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139455
Title: Upper-bound limit analysis of unsaturated soil slopes under rainfall
Authors: Huang, Wengui
Leong, Eng-Choon
Rahardjo, Harianto
Keywords: Engineering::Environmental engineering
Issue Date: 2018
Source: Huang, W., Leong E.-C., & Rahardjo, H. (2018). Upper-bound limit analysis of unsaturated soil slopes under rainfall. Journal of Geotechnical and Geoenvironmental Engineering, 144(9), 04018066-. doi:10.1061/(ASCE)GT.1943-5606.0001946
Journal: Journal of Geotechnical and Geoenvironmental Engineering
Abstract: This paper presents an analytical framework for the stability analysis of unsaturated soil slopes under rainfall. The conventional log-spiral upper bound limit analysis for dry and saturated soil slopes is extended to unsaturated soil slopes by incorporating matric suction and rainfall infiltration. For an unsaturated soil slope under rainfall, shallow translational failure may be more critical than rotational failure. Hence, a translational failure mechanism in the context of upper bound plasticity theory is proposed, and its effectiveness is validated by finite-element analysis. Through the dimensionless stability charts developed by the upper bound limit analysis, the controlling factors on the failure mode of unsaturated soil slopes under rainfall are identified and investigated.
URI: https://hdl.handle.net/10356/139455
ISSN: 1090-0241
DOI: 10.1061/(ASCE)GT.1943-5606.0001946
Rights: © 2018 American Society of Civil Engineers. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles

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