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孤岛工作面冲击地压防治研究
发布人:网站管理员 发布时间:2021/11/22 点击次数:76次
  

孤岛工作面冲击地压防治研究
侯志丹
(霍州煤电集团庞庞塔煤矿,山西 吕梁 033000)
摘要: 为了解决矿井孤岛工作面冲击地压发生频繁的问题,从覆岩强度、运动形式以及地质构造等方面确定了在距
离开切眼0耀340 m和510耀880 m的范围内容易发生冲击地压;通过水力压裂的方法,降低了该区域内岩层的应力值,达
到降低冲击地压危险性的目的,保障了工作面的顺利回采。
关键词: 孤岛工作面;冲击地压;地质构造;水力压裂
中图分类号: TD324+.2     文献标识码: A     文章编号: 2095-0802-(2021)11-0030-02
Study on Prevention of Rock Burst in Isolated Island Working Face
HOU Zhidan
(Pangpangta Coal Mine, Huozhou Coal Electricity Group, Lvliang 033000, Shanxi, China)
Abstract: In order to solve the problem of frequent occurrence of rock burst in the isolated island working face of the mine, this
paper determined that the rock burst is prone to occur within the range of 0-340 m and 510-880 m from the open cut in terms of
the strength of the overburden, the form of movement and the geological structure; through the method of hydraulic fracturing, the
stress value of the rock formation in the area was reduced, achieving the purpose of reducing the risk of rock burst and ensuring
the smooth mining of the working face.

Key words: isolated island working face; rock burst; geological structure; hydraulic fracturing