201906

大采高综采工作面护巷煤柱稳定性分析
发布人:网站管理员 发布时间:2019/6/26 点击次数:151次
  

大采高综采工作面护巷煤柱稳定性分析
高全武
(乌审旗蒙大矿业有限责任公司,内蒙古鄂尔多斯017307)
摘要: 为了保证厚煤层大采高工作面的稳定性,在开采过程中常留设煤柱。煤柱留设的尺寸问题关乎煤矿的安全和
资源采出率,是大采高工作面的核心技术问题之一。对厚煤层大采高工作面煤柱稳定性开展研究,以山西A煤矿为例进
行分析,对大采高工作面煤柱尺寸进行了系统分析计算,通过现场监测煤柱应力分布验证了煤柱尺寸的合理性。
关键词: 大采高;厚煤层;综采工作面;煤柱;稳定性
中图分类号: TD353 文献标识码: A 文章编号: 2095-0802-(2019)06-0010-03
Stability Analysis of Coal Pillars for Retaining Roadway in Fully Mechanized Mining Face with
Large Mining Height
GAO Quanwu
(Mengda Mining Co., Ltd. of Wushen Banner, Ordos 017307, Inner Mongolia, China)
Abstract: In order to ensure the stability of large mining height working face of thick coal seams, coal pillars are often set up in
the mining process. The size of coal pillars is related to the safety and the resource recovery rate of coal mine, which is one of the
core technical problems of working face with large mining height. The stability of coal pillars in large mining height working face
of thick seam was studied. Taking A Coal Mine in Shanxi as an example, this paper analyzed and calculated the size of coal pillars
in large mining height working face systematically and verified the rationality of the size by monitoring the stress distribution
of coal pillars on site.

Key words: large mining height; thick coal seam; fully mechanized mining face; coal pillar; stability