NDLI: A strength reduction method based on double reduction parameters and its application

Content Provider	Springer Nature Link
Author	Yuan, Wei Bai, Bing Li, Xiao chun Wang, Hai bin
Copyright Year	2013
Abstract	In the traditional strength reduction method, the cohesion and the friction angle adopt the same reduction parameter, resulting in equivalent proportional reduction. This method does not consider the different effects of the cohesion and friction angle on the stability of the same slope and is defective to some extent. Regarding this defect, a strength reduction method based on double reduction parameters, which adopts different reduction parameters, is proposed. The core of the double-parameter reduction method is the matching reduction principle of the slope with different angles. This principle is represented by the ratio of the reduction parameter of the cohesion to that of the friction angle, described as η. With the increase in the slope angle, η increases; in particular, when the slope angle is 45°, η is 1.0. Through the matching reduction principle, different safety margin factors can be calculated for the cohesion and friction angle. In combination with these two safety margin factors, a formula for calculating the overall safety factor of the slope is proposed, reflecting the different contributions of the cohesion and friction angle to the slope stability. Finally, it is shown that the strength reduction method based on double reduction parameters acquires a larger safety factor than the classic limit equilibrium method, but the calculation results are very close to those obtained by the limit equilibrium method.
Starting Page	2555
Ending Page	2562
Page Count	8
File Format	PDF
ISSN	20952899
Journal	Journal of Central South University of Technology
Volume Number	20
Issue Number	9
e-ISSN	22275223
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-09-06
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	double reduction parameter strength reduction method matching reduction principle slope stability Engineering Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Metals and Alloys Engineering

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