山东煤炭科技2024，Vol.42Issue(3)：104-108,5.DOI:10.3969/j.issn.1005-2801.2024.03.022
无煤柱开采采空区漏风防治技术研究
Research on Air Leakage Prevention and Control Technology in Non Coal Pillar Mining Goaf
许跃强 1刘志强1
作者信息
- 1. 中煤新登郑州煤业有限公司,河南 郑州 450000
- 折叠
摘要
Abstract
Aiming at the problem of large-scale air leakage in the 22051 goaf and adjacent goaf under the mining way of non coal pillar mining in the 22th mining area of Xindeng Coal Mine,by analyzing the air leakage pathways in the 22051 goaf,it is proposed to block the 22051 auxiliary roadway,adjust the 22031 and 22071 machine lanes to uniform pressure ventilation to improve the ventilation situation,and conduct tube monitoring and analysis on the gas of the 22051 shutdown line to verify the effectiveness of air leakage control.The monitoring results of the bundle tube show that the northern part of the stop mining line in the 22051 goaf has been effectively treated through sealing,while the southern part of the stop mining line has experienced an increase in oxygen concentration due to air leakage in the machine roadway.Spray grouting has been implemented to seal the machine roadway within a range of 20 m on the goaf side and 10 m on the solid coal side below the cut roadway,further reducing air leakage.关键词
无煤柱开采/采空区漏风/喷浆堵漏/均压通风Key words
non coal pillar mining/air leakage in goaf/spray grouting for plugging leaks/uniform pressure ventilation分类
矿业与冶金引用本文复制引用
许跃强,刘志强..无煤柱开采采空区漏风防治技术研究[J].山东煤炭科技,2024,42(3):104-108,5.
