Numerical Simulation of Coal Mining Excavation Based on Discontinuous Deformation Analysis

被引：2
|
作者：
Gao, Yanan [1 ]
Gao, Feng [1 ]
Yeung, M. R. [2 ]
Jiang, Qinghui
机构：
[1] State Key Lab Deep Underground Geomech & Engn, Xuzhou 221008, Jiangsu, Peoples R China
[2] Wuhan Univ, Sch Civil & Architectural Engn, Wuhan 430072, Peoples R China
来源：
APPLIED MECHANICS AND MECHANICAL ENGINEERING II, PTS 1 AND 2 | 2012年 / 138-139卷
关键词：
Discontinuous deformation analysis; Mining excavation; Displacement field;
D O I：
10.4028/www.scientific.net/AMM.138-139.187
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The movement and deformation of rock stratum occur when the excavation is carries out during the underground mining process. Rock is a continuous-discontinuous material so the continuum mechanics method may not handle the rock problem well. The discontinuous deformation analysis (DDA) method which discretizes the rock mass to block system can describe the large displacement and deformation of rock blocks, especially the rock stratum collapse. The DDA was employed in this paper to analysis a mining excavation process. The displacement field and stress field of rock stratum was computed. The result shows that the DDA can handle the mining excavation and the rock stratum movement and deformation problem well.
引用
收藏
页码：187 / +
页数：2
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