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The state of the art and new insight into combined finite–discrete element modelling of the entire rock slope failure process

Citation

An, H and Fan, Y and Liu, H and Cheng, Y and Song, Y, The state of the art and new insight into combined finite-discrete element modelling of the entire rock slope failure process, Sustainability, 14, (9) pp. 1-20. ISSN 2071-1050 (2022) [Refereed Article]


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DOI: doi:10.3390/su14094896

Abstract

The stability of rock slopes is of significance, as even the slightest slope failure can result in damage to infrastructure and catastrophes for human beings. Thus, this article focuses on the review of the current techniques available for rock slope stability analysis. The rock slope stability techniques can be classified as conventional methods and numerical methods. The advantages and limitations of the conventional method are briefly reviewed. The numerical methods mainly included three types, i.e., continuum methods, discontinuum methods, and the combined/hybrid continuum–discontinuum methods. This article pays more attention to the last type. The combined/hybrid finite–discrete element method (FDEM), which might be the most widely used continuum–discontinuum method, is introduced and we illustrated its abilities in modelling the entire rock slope failure process. The fundamental principles of FDEM, i.e., the contact interaction of the discrete bodies and the transition from continuum to discontinuum, are introduced in detail. The abilities of the FDEM in modelling the rock slope failure process are calibrated by modelling the entire typical rock slope failure process. Then, the application of the FDEM in the analysis of slope stability is introduced and discussed. Finally, the authors give insight into the GPGUP-parallelized FDEM modelling of the high rock slope failure process by the implementation of the strength reduction method (SRM). It is concluded that the FDEM can effectively model the entire rock slope failure process, even without the implantation of any slope modes, and the GPGUP-parallelized FDEM is a promising tool in the study and application of rock slope stabilities.

Item Details

Item Type:Refereed Article
Keywords:rock slope analysis, limit analysis method, numerical methods, combined/hybrid finite-discrete element method
Research Division:Engineering
Research Group:Civil engineering
Research Field:Civil geotechnical engineering
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in engineering
UTAS Author:Liu, H (Dr Hong Liu)
UTAS Author:Cheng, Y (Ms Yingyao Cheng)
ID Code:150913
Year Published:2022
Web of Science® Times Cited:1
Deposited By:Engineering
Deposited On:2022-07-05
Last Modified:2022-09-02
Downloads:0

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