Study on mechanism of abnormal pressure on support in fully mechanized sublevel caving face at geologic changing

SHI Hong; JIANG Fu-xing; LI Lian-xiang

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Study on mechanism of abnormal pressure on support in fully mechanized sublevel caving face at geologic changing

更新时间：2026-06-25

- Study on mechanism of abnormal pressure on support in fully mechanized sublevel caving face at geologic changing
- Vol. 27, Issue S1, (2006)
- 作者机构：
  
  1. 山东交通学院土木工程系,济南,250023
  2. 北京科技大学土木与环境工程学院,北京,100083
  3. 山东农业大学水利土木工程学院,泰安,271018
  4. 山东科技大学,泰安,271019
- 作者简介：
- 基金信息：
- DOI：
  CLC： TD35
- Online First：15 December 2006，
  
  Published：2006
- 稿件说明：
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SHI Hong, JIANG Fu-xing, LI Lian-xiang. Study on mechanism of abnormal pressure on support in fully mechanized sublevel caving face at geologic changing[J]. 2006, 27(S1).
DOI：

SHI Hong, JIANG Fu-xing, LI Lian-xiang. Study on mechanism of abnormal pressure on support in fully mechanized sublevel caving face at geologic changing[J]. 2006, 27(S1). DOI：

摘要

针对多个综放采场出现的支架立柱压爆、油缸变形等异常矿压显现，通过对综放采场上覆岩层的运动范围及运动特点、顶板结构动态稳定性的分析，探讨了综放工作面异常压力产生的机理。得出了顶板结构局部铰接失稳（滑落失稳）是造成异常压力主要原因的结论。由于滑落失稳的原因不同，可分为水浸蚀型、地质构造型和顶板失稳型。通过对综放采场支架作用力的分析，给出了计算异常压力的公式。利用顶板结构动态稳定性判断准则，可对异常压力的类型进行判别，从而进一步确定异常压力的计算方法，为采场支架选型和现场控制异常压力提供理论依据。

Abstract

Aimed at phenomena of support’s being pressed to burst or be unable to work in a few fully mechanized sublevel caving longwall faces

according to the analysis of the roof structures

their movement characteristics and the dynamic stability in fully-mechanized sublevel caving face

the mechanism of abnormal pressure on support in fully mechanized sublevel caving face is studied. The conclusion is that the main cause of abnormal pressure is sliding of roof structure. Because of the difference of sliding of roof structure

there are three of abnormal pressure. According to the analysis of the pressure on support

the computation formulae of abnormal pressure on support are presented. Using the dynamic stability judgement rules of roof structures

the types of abnormal pressure on support are distinguished and the computation means of abnormal pressure are defined; and the theoretical foundation about the selection of support in fully mechanized sublevel caving face and controlling abnormal pressure at field experiments are provided.

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