摘要
针对矿区3#煤层厚度大,瓦斯压力、含量高,煤层松软、透气性差,煤与瓦斯动力灾害严重的现状,通对韩城矿区的瓦斯地质赋存规律及瓦斯动力灾害的特点进行梳理和深入剖析。研究结果表明:韩城矿区3#煤层瓦斯灾害主要是以高地应力为基础的构造应力、采动应力集中造成的瞬时突出,部分异常松软区域会发生以高地应力为基础的准静载作用下的蠕变延时突出,据此提出了加强地质探测工作,从煤层瓦斯抽采和应力卸除两方面防治煤与瓦斯突出灾害的技术思路,为矿区防治瓦斯动力灾害提供理论指导。
Aiming at the status quo of 3# coal seam in the mining area with large thickness, high gas pressure and content, soft coal seam, poor gas permeability, and serious coal and gas dynamic disasters,To analyze and analyze the gas geological occurrence rules and the characteristics of gas dynamic disasters in Hancheng mining area. The research results show that the gas hazard in 3# coal seam in Hancheng Mining Area is mainly caused by the tectonic stress and mining stress concentration based on high geostress, and some abnormally soft areas will occur under the quasi static load based on high geostress The creep delay is outstanding. Based on this, the technical ideas for strengthening geological exploration, preventing coal and gas outburst disasters from the aspects of coal seam gas drainage and stress removal are provided, providing theoretical guidance for preventing gas dynamic disasters in mining areas.
作者
季飞
李生舟
JI Fei;LI Shengzhou(State Key Laboratory of Gas Disaster Monitoring and Emergency Technology,Chongqing 400037,China;China Coal Technology and Engineering Group Chongqing Research Institute,Chongqing 400037,China)
出处
《煤矿现代化》
2020年第3期89-91,共3页
Coal Mine Modernization
基金
国家重点研发计划资助项目(2017YFC0804206)
中煤科工集团重庆研究院有限公司项目(2017YBXM31)。
关键词
韩城矿区
瓦斯动力灾害
高地应力
延时突出
蠕变性
hancheng mining area
gas dynamic disaster
high ground stress
delay outburst
creep property
