Paper Title:
Numerical Simulation of Coal Mining Excavation Based on Discontinuous Deformation Analysis
  Abstract

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.

  Info
Periodical
Chapter
Chapter 1: Applied Mechanics Mechanical Engineering
Edited by
Honghua Tan
Pages
187-192
DOI
10.4028/www.scientific.net/AMM.138-139.187
Citation
Y. N. Gao, F. Gao, M.R. Yeung, Q. H. Jiang, "Numerical Simulation of Coal Mining Excavation Based on Discontinuous Deformation Analysis", Applied Mechanics and Materials, Vols. 138-139, pp. 187-192, 2012
Online since
November 2011
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Price
$32.00
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