202011

厚煤层大采高综采工作面覆岩失稳破断规律及控制研究
发布人:网站管理员 发布时间:2020/11/23 点击次数:71次
  

厚煤层大采高综采工作面覆岩失稳破断规律及控制研究
朱建伟
(山西霍宝干河煤矿有限公司,山西 洪洞 041602)
摘要: 厚煤层大采高综采工作面移动岩层垮塌范围比较大,开采空间相对大,开采工作面非常容易出现支架损坏、
压死,支架不稳定,煤壁片帮等问题,从而影响大采高综采工作面的生产安全。所以,研究厚煤层大采高综采工作面破
断覆岩失稳的结构、规律,围岩与支架关系和控制破断技术,为中国厚煤层大采高综采工作面的安全、高效生产提供了
理论支持。依据厚煤层大采高综采工作面覆岩失稳破断规律、围岩与支架关系、控制破断的技术成果等,提出了开采厚
煤层的技术和理论,最终为中国厚煤层大采高综采工作面的安全开采提供了技术支持。
关键词: 厚煤层;大采高综采工作面;覆岩失稳破断规律;顶板控制;支架支护
中图分类号: TD823     文献标志码: A     文章编号: 2095-0802-(2020)11-0038-02
Research on Overburden Instability Breaking Law and Control in Fully Mechanized Mining Face
with Large Mining Height in Thick Coal Seam
ZHU Jianwei
(Shanxi Huobaoganhe Coal Mine Co., Ltd., Hongtong 041602, Shanxi, China)
Abstract: In thick coal seam, the fully mechanized mining face with large mining height has a large range of strata collapse and
mining space is relatively large. The mining face is very prone to support damage, crushing, support instability, coal wall spalling
and other problems, which affect the production safety of fully mechanized mining face with large mining height. Therefore, the
research on the structure, law, the relationship between surrounding rock and support, and the control technology of broken
overburden in fully mechanized mining face with large mining height in thick coal seam provides theoretical support for safe and
efficient production of fully mechanized mining face with large mining height in thick coal seam in China. According to the law of
overburden rock breaking and instability, the relationship between surrounding rock and support, and the technical achievements
of breaking control, this paper put forward the technology and theory of mining thick coal seam, and finally provided technical
support for safe mining of fully mechanized mining with large mining height face in thick coal seam in China.

Key words: thick coal seam; fully mechanized mining face with large mining height; overburden instability breaking law; roof
control; bracket supporting