煤炭工程 ›› 2016, Vol. 48 ›› Issue (3): 42-45.doi: 10.11799/ce201603014

• 施工技术 • 上一篇    下一篇

皖北矿区综采工作面软弱围岩液压支架耦合性能分析

刘俊峰1,王国法2,王福清3,仁怀伟1   

  1. 1. 天地科技股份有限公司
    2. 中煤科工集团
    3. 皖北煤电
  • 收稿日期:2015-05-13 修回日期:2015-06-18 出版日期:2016-03-10 发布日期:2016-04-08
  • 通讯作者: 刘俊峰 E-mail:liujunfeng@tdkcsj.com

Analysis of performance hydraulic support-weak surrounding rock coupling of fully mechanized coal mining face in Wanbei mine

  • Received:2015-05-13 Revised:2015-06-18 Online:2016-03-10 Published:2016-04-08

摘要: 针对皖北矿区软弱围岩特性,分析了不同位置软弱围岩的运移规律,得出其对工作面支护的影响作用从强到弱依次为直接顶、底板、煤层和基本顶|基于综采工作面软弱围岩液压支架强度耦合、刚度耦合和稳定性耦合分析,得出了软弱围岩综采工作面支护强度确定需要考虑顶板支护、围岩完整性控制两个方面,提出合理的液压支架初撑强度确定方法,完善了软弱围岩综采工作面液压支架设计要求。开采实践可知,液压支架设计合理能够满足软弱围岩综采工作面开采要求。

关键词: 软弱围岩, 初撑强度, 支护强度, 支架围岩耦合, 液压支架设计

Abstract: Aim at the weak rock characteristics of wanbei mining area, the breakage law of different location of weak surrounding rock is analyzed, it is concluded that the effect on the working face support from strong to weak, in turn, for the immediate roof, floor and coal seam and roof; Based on analysis on stiffness coupling, strength coupling and stability coupling of the fully mechanized working face. The supporting intensity is confirmed by roof timbering and surrounding rock integrity control. The determination method of setting intensity is put forward. The design requirements of hydraulic support in weak surrounding rock are completed. Mining practice shows that reasonable hydraulic support design can meet the requirements of fully mechanized mining face in weak surrounding rock.

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