气候变化领域集成服务门户(CCPortal): The global sensitivity analysis of slope stability based on the least angle regression

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DOI	10.1007/s11069-020-04403-z
	The global sensitivity analysis of slope stability based on the least angle regression
	Xu Z.; Zhou X.; Qian Q.
发表日期	2021
ISSN	0921030X
起始页码	2361
结束页码	2379
卷号	105 期号:3
英文摘要	The least angle sensitivity (LARS) algorithm is used to realize the global sensitivity analysis of slope stability, while simultaneously considering the effects of several geotechnical parameters on slope stability. In addition, the Sobol sequence is applied in the sample simulation to generate the geotechnical parameters, thereby increasing the accuracy of the results. Two cases are considered to investigate the effects of the geotechnical parameters on slope stability, and the accuracy and efficiency of the LARS algorithm are examined. The importance measure indexes obtained using the LARS algorithm are in good agreement with those obtained using the Monte Carlo (MC) method. To determine the importance measure indexes, the performance functions of the slope stability analysis are required to be run N times when using the LARS algorithm, which is 1 / (n· N+ 1) the required number for the MC method, where n and N represent the number of random variables and sample size, respectively. In this scenario, the computational efficiency is considerably increased. © 2020, Springer Nature B.V.
关键词	Computational efficiency Global sensitivity analysis (GSA)Least angle regression (LARS) algorithm Slope stability
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206684
作者单位	School of Civil Engineering, Chongqing University, Chongqing City, China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, 174 Shazhengjie Rd., Chongqing, 400045, China; Key Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University, 174 Shazhengjie Rd., Chongqing, 400045, China
推荐引用方式 GB/T 7714	Xu Z.,Zhou X.,Qian Q.. The global sensitivity analysis of slope stability based on the least angle regression[J],2021,105(3).
APA	Xu Z.,Zhou X.,&Qian Q..(2021).The global sensitivity analysis of slope stability based on the least angle regression.Natural Hazards,105(3).
MLA	Xu Z.,et al."The global sensitivity analysis of slope stability based on the least angle regression".Natural Hazards 105.3(2021).