202010

干河煤矿1021临空巷道围岩变形控制研究
发布人:网站管理员 发布时间:2020/10/23 点击次数:78次
  

干河煤矿1021临空巷道围岩变形控制研究
冯浩
(山西霍宝干河煤矿有限公司,山西 洪洞 041600)
摘要: 为解决干河煤矿1021临空巷道围岩变形严重的问题,采用现场实测、理论分析和数值模拟的方法对巷道围岩应
力进行了研究,得出测试区域应力水平为中等;同时,结合106工作面回采后102 工作面的垂直应力分布情况,优化确定
煤柱的合理宽度为25 m,并且采用了锚网索联合支护方式。通过现场应用,该方式支护效果良好,具有很好的推广价值。
关键词: 临空巷道;围岩变形;煤柱宽度;变形控制
中图分类号: TD325     文献标志码: A     文章编号: 2095-0802-(2020)10-0015-02
Research on Deformation Control of Surrounding Rock of 1021 Roadway near Goaf in
Ganhe Coal Mine
FENG Hao
(Huobao Ganhe Coal Mine Co., Ltd. of Shanxi, Hongtong 041600, Shanxi, China)
Abstract: In order to solve the problem of serious deformation of surrounding rock of 1021 roadway near goaf in Ganhe Coal
Mine, this paper studied the surrounding rock stress of the roadway by using the method of field measurement, theoretical analysis
and numerical simulation. It was obtained that the stress level of the test area was medium. Through the vertical stress distribution
of 102 working face after mining in 106 working face, the reasonable width of the coal pillar was optimized to be 25 m, and a
combined anchor, mesh and cable support method was adopted. Through the field application, the supporting effect of this method
is good, which has good promotion value.

Key words: roadway near goaf; surrounding rock deformation; coal pillar width; deformation control