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Journal of Zhejiang University SCIENCE A 2012 Vol.13 No.12 P.943-957


Physically-based approach to analyze rainfall-triggered landslide using hydraulic gradient as slide direction

Author(s):  Qi-hua Ran, Dan-yang Su, Qun Qian, Xu-dong Fu, Guang-qian Wang, Zhi-guo He

Affiliation(s):  Department of Hydraulic Engineering, Zhejiang University, Hangzhou 310058, China; more

Corresponding email(s):   hezhiguo@zju.edu.cn

Key Words:  Shallow landslide, Infinite slope stability model, Hydraulic gradient, Physically-based hydrology model, Integrated hydrology model (InHM)

Qi-hua Ran, Dan-yang Su, Qun Qian, Xu-dong Fu, Guang-qian Wang, Zhi-guo He. Physically-based approach to analyze rainfall-triggered landslide using hydraulic gradient as slide direction[J]. Journal of Zhejiang University Science A, 2012, 13(12): 943-957.

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author="Qi-hua Ran, Dan-yang Su, Qun Qian, Xu-dong Fu, Guang-qian Wang, Zhi-guo He",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Physically-based approach to analyze rainfall-triggered landslide using hydraulic gradient as slide direction
%A Qi-hua Ran
%A Dan-yang Su
%A Qun Qian
%A Xu-dong Fu
%A Guang-qian Wang
%A Zhi-guo He
%J Journal of Zhejiang University SCIENCE A
%V 13
%N 12
%P 943-957
%@ 1673-565X
%D 2012
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1200054

T1 - Physically-based approach to analyze rainfall-triggered landslide using hydraulic gradient as slide direction
A1 - Qi-hua Ran
A1 - Dan-yang Su
A1 - Qun Qian
A1 - Xu-dong Fu
A1 - Guang-qian Wang
A1 - Zhi-guo He
J0 - Journal of Zhejiang University Science A
VL - 13
IS - 12
SP - 943
EP - 957
%@ 1673-565X
Y1 - 2012
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1200054

An infinite slope stability numerical model driven by the comprehensive physically-based integrated hydrology model (InHM) is presented. In this approach, the failure plane is assumed to be parallel to the hydraulic gradient instead of the slope surface. The method helps with irregularities in complex terrain since depressions and flat areas are allowed in the model. The present model has been tested for two synthetic single slopes and a small catchment in the Mettman Ridge study area in Oregon, United States, to estimate the shallow landslide susceptibility. The results show that the present approach can reduce the simulation error of hydrological factors caused by the rolling topography and depressions, and is capable of estimating spatial-temporal variations for landslide susceptibilities at simple slopes as well as at catchment scale, providing a valuable tool for the prediction of shallow landslides.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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