Study on bending catastrophe phenomena of anchor roof beam

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Study on bending catastrophe phenomena of anchor roof beam

更新时间：2026-06-25

- Study on bending catastrophe phenomena of anchor roof beam
- Vol. 25, Issue 8期　刊出日, (2004)
- 作者机构：
  
  安徽理工大学资源开发与管理工程系,安徽,淮南,232001
- 作者简介：
- 基金信息：
- DOI：
  CLC： TD353.6
- Online First：25 July 2014，
  
  Published：2004
- 稿件说明：
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GAO Ming-zhong. Study on bending catastrophe phenomena of anchor roof beam[J]. 2004, 25(8期　刊出日).
DOI：

GAO Ming-zhong. Study on bending catastrophe phenomena of anchor roof beam[J]. 2004, 25(8期　刊出日). DOI：

摘要

现场经验及模型实验表明，煤巷锚杆支护中有时出现锚固体的弯曲突变失稳现象。通过力学模型解析，系统地研究了锚固体的弯曲突变失稳机理及平衡条件，并对锚固体的横向承载面积及水平推力进行了分析，发现锚固体梁在受载变形的不同阶段维持不同的自稳特征，保持不同的动态平衡。因此，研究锚固体突变失稳的发生和控制具有理论价值和工程意义。

Abstract

Field experience and similar material simulation indicate that there is the bending catastrophe phenomenon of anchor roof beam in bolting roadway sometimes. By means of mechanical model analysis

bending catastrophe steady mechanism and equilibrium conditions of anchor roof beam are systematically studied; and the bearing area and horizontal thrust of the anchor roof beam are analyzed

too. It is discovered that anchor roof beam different steady characteristics and different dynamic equilibriums in different stages. The theoretical and engineering value of them are prospected for the presentation and controlling of anchor roof beams.

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