RESEARCH ARTICLE


Application of 3D-FSM Boundary Element Method in Stress and Displacement Analysis of Roadway



Wang Chong*, 1, Liu Cheng-lun2, Cui Xiaohua2
1 Center of Modern Education, Shandong University of Science and Technology, Qingdao 266590, P.R. China
2 College of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, P.R. China


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Creative Commons License
© 2015 Chong et al;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Network and Information Center, Shandong University of Science and Technology, Qingdao 266590, P.R. China; Tel: +86 18561554929; E-mail: wcbaby@tom.com


Abstract

Conventional fictitious stress methods (FSM) employ numerical integration to calculate displacements or stresses on each element unit. The paper represents a kind of three-dimensional fictitious stress method adopting analytical integrals over triangular leaf elements instead of numerical integration and describes how to analyze stress and displacement of surrounding rock around roadway by the 3D-FSM. The results computed by this method were compared with the results obtained by Flac3d, which proved that it is a correct and rational method to solve three-dimensional mechanics problems especially about hole and crack in an elastic body.

Keywords: Fictitious stress method, analytical integrals, BEM, roadway, 3D-FSM.