Numerical simulation of failure mechanism of slender coal pillars

CHENG Guo-ming; HUANG Kan; WANG Si-jing; NING Ke

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Numerical simulation of failure mechanism of slender coal pillars

更新时间：2026-06-25

- Numerical simulation of failure mechanism of slender coal pillars
- Vol. 25, Issue 2, (2004)
- 作者机构：
  
  1. 中国科学院地质与地球物理研究所,北京,100029
  2. 中国矿业大学北京校区资源系,北京,100083
  3. 义马煤业公司北露天煤矿，河南义马,472302
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB115
- Online First：15 July 2014，
  
  Published：2004
- 稿件说明：
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CHENG Guo-ming, HUANG Kan, WANG Si-jing, et al. Numerical simulation of failure mechanism of slender coal pillars[J]. 2004, 25(2).
DOI：

CHENG Guo-ming, HUANG Kan, WANG Si-jing, et al. Numerical simulation of failure mechanism of slender coal pillars[J]. 2004, 25(2). DOI：

摘要

对特厚煤层条件下采用螺旋钻机开采细长窄煤柱的破坏过程进行了数值模拟。模拟结果再现了开采过程中煤柱破坏发生、发展直至塑性区贯通破坏的全过程，并从应力场演化分析了煤柱破坏过程的应力分布特征及破坏机理。

Abstract

Numerical simulation software FLAC2D is used to simulate the failure mechanism of slender coal pillars (which are of much lower width to height ratios) during high wall mining of thick seam. The results reproduce the whole process from the initiation of pillar failure

propagation

to plastic zone being joined together. The characteristics of stress distribution and failure mechanism of coal pillars are discussed by the numerically obtained stress yield during pillar deformation and failure process.

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