TY - JOUR
T1 - Comprehensive analysis of landslide stability and related countermeasures
T2 - a case study of the Lanmuxi landslide in China
AU - Han, Zheng
AU - Su, Bin
AU - Li, Yange
AU - Ma, Yangfan
AU - Wang, Weidong
AU - Chen, Guangqi
N1 - Funding Information:
This study was financially supported by the National Key R&D Program of China (Grant No. 2018YFC1505401, Z. Han); the National Natural Science Foundation of China (Grant No. 41702310, Z. Han); the Natural Science Foundation of Hunan (Grant No. 2018JJ3644, Z. Han); the Innovation-Driven Project of Central South University (Grant No. 2019CX011); and the Fundamental Research Funds for the Central Universities of Central South University. These financial supports are gratefully acknowledged.
Publisher Copyright:
© 2019, The Author(s).
PY - 2019/12/1
Y1 - 2019/12/1
N2 - We report on a comprehensive method for analyzing landslide stability and the mitigation effect of countermeasures in this paper. The proposed method is a combination of theoretical method and numerical method. To address the uncertainties of the soil strength parameters, the rational values of these parameters are comprehensively determined by the back-analysis result of the reliability method and the result by the quantitative method, as well as the in-situ geological test. To evaluate the slope stability, the limit analysis using the 2D upper bound method and the FEM simulation using strength reduction method are performed, respectively. In order to illustrate the presented method, the so-called Lanmuxi landslide in China is selected as a case study. Results demonstrated that the stress and strain majorly concentrated at the toe and crown of the slope. According to the analysis results, countermeasures consisting of anchor lattice beams, landslide piles, and cracks filling, are suggested to reduce the failure risk of the landslide. Effect assessment based on the FEM analysis verifies the feasibility and effectiveness of the recommended countermeasures.
AB - We report on a comprehensive method for analyzing landslide stability and the mitigation effect of countermeasures in this paper. The proposed method is a combination of theoretical method and numerical method. To address the uncertainties of the soil strength parameters, the rational values of these parameters are comprehensively determined by the back-analysis result of the reliability method and the result by the quantitative method, as well as the in-situ geological test. To evaluate the slope stability, the limit analysis using the 2D upper bound method and the FEM simulation using strength reduction method are performed, respectively. In order to illustrate the presented method, the so-called Lanmuxi landslide in China is selected as a case study. Results demonstrated that the stress and strain majorly concentrated at the toe and crown of the slope. According to the analysis results, countermeasures consisting of anchor lattice beams, landslide piles, and cracks filling, are suggested to reduce the failure risk of the landslide. Effect assessment based on the FEM analysis verifies the feasibility and effectiveness of the recommended countermeasures.
UR - http://www.scopus.com/inward/record.url?scp=85071529668&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85071529668&partnerID=8YFLogxK
U2 - 10.1038/s41598-019-48934-3
DO - 10.1038/s41598-019-48934-3
M3 - Article
C2 - 31455842
AN - SCOPUS:85071529668
SN - 2045-2322
VL - 9
JO - Scientific reports
JF - Scientific reports
IS - 1
M1 - 12407
ER -