Study of mechanism of rock mass deformation and failure ahead of working face on supporting zone

QIAN Yue-hong   WANG De-rong   LI Jie  CHEN Wen-tao

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Study of mechanism of rock mass deformation and failure ahead of working face on supporting zone

更新时间：2026-06-25

- Study of mechanism of rock mass deformation and failure ahead of working face on supporting zone
- Vol. 32, Issue 10, (2011)
- 作者机构：
  
  1. 解放军理工大学工程兵工程学院,南京,210007
  2. 解放军92303部队，山东胶南,266405
- 作者简介：
- 基金信息：
- DOI：
  CLC： TD32
- Online First：13 October 2011，
  
  Published：2011
- 稿件说明：
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QIAN Yue-hong WANG De-rong LI Jie CHEN Wen-tao. Study of mechanism of rock mass deformation and failure ahead of working face on supporting zone[J]. 2011, 32(10).
DOI：

QIAN Yue-hong WANG De-rong LI Jie CHEN Wen-tao. Study of mechanism of rock mass deformation and failure ahead of working face on supporting zone[J]. 2011, 32(10). DOI：

摘要

利用岩石滑移破坏强度理论，研究地下开采时掌子面前方岩体中的应力和应变状态，分析引起支撑压力区岩体体积变化的主要因素，并通过对体积变形状态及变形结果的分析，得到深部围岩区域破裂现象的发生条件。结果显示，深部岩体工程中掌子面前支撑压力区域体积变化的主要原因是最大支撑压力区域在各向不均匀压缩的条件下产生的“分层剥离”，该机制可解释分区破裂化现象。同时，根据浅部与深部岩体工程的不同特征现象，给出以单轴抗压强度表示的界定浅部与深部工程的解析表达式，并认为对于较薄的岩层，普朗特解是一种很好的近似

Abstract

The shear slippage failure theory is used to study the stress-strain state in terrane ahead of working face; and then the main factors that cause volumetric deformation are analyzed. By means of the volumetric deformation state and its consequences

the mechanism of zonal disintegration phenomenon is explained and the occurrence conditions are derived. The results show that the main reason for volumetric deformation in supporting zone of deep rock mass is that the different pressure in prime stress space leads to the rock mass’s spalling

which explains the zonal disintegration; meanwhile

according to the characters of the shallow or deep rock engineering

the computation formula containing the column strength of rock mass is used to define the shallow or deep rock engineering. As to the thin rock terrane

the Prandtl solution is a good approximate one.

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