期刊
APPLIED MECHANICS AND MECHANICAL ENGINEERING II, PTS 1 AND 2
卷 138-139, 期 -, 页码 187-+出版社
TRANS TECH PUBLICATIONS LTD
DOI: 10.4028/www.scientific.net/AMM.138-139.187
关键词
Discontinuous deformation analysis; Mining excavation; Displacement field
资金
- National Basic Research Program (973) [2011CB201205]
- State Key Laboratory for Geomechanics and Deep Underground Engineering [SKLGDUE0901]
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.
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