摘要
针对平顶山矿区深部开采的瓦斯治理现状,采用数值模拟和现场实测手段,分析了远程下保护层开采后,上覆煤岩层在采动过程中的应力分布和膨胀变形规律,结果表明:平顶山矿区的煤层群赋存条件为远程保护层开采技术的应用提供了良好的自然条件,尽管煤组间距较大,但卸压增透效果显著,配合合理的卸压瓦斯强化抽采措施,能够消除远程被保护层的突出危险性,说明改变现有的开采布局,采用远程保护层开采技术,有利于对深部煤炭资源的安全开采。
According to mine gas control status of deep mining in Pingdingshan Mining Area, numerical simulation and site measured means were applied to analyze the stress distribution and the swelling deformation law of the above strata and seam during the seam mining process after the remote protective layer mined. The results showed that the seam group deposit condition in Pingdingshan Mining Area could provide the excellent natural conditions for the application of the mining technology to the remote protective layer. Though a big clearance was between the seam groups, but the pressure releasing and penetration effect was obvious. With the rational pressure releasing and gas forced drainage measures, the outburst danger of the remote protective layer could be eliminated with the existing mining layout changed, the mining technology for the remote protective layer would be suitable to the safety mining of the deep coal resources.
出处
《煤炭科学技术》
CAS
北大核心
2009年第8期53-56,共4页
Coal Science and Technology
基金
高等学校博士点学科专项科研基金资助项目(20070460001)
河南省重大公益性科研资助项目(0623021400)
河南理工大学博士点基金资助项目(B2008-52)
河南省科技计划资助项目(082102240094)
关键词
远程保护层
数值模拟
卸压瓦斯
瓦斯抽采
remote protective layer
numerical simulation
pressure released gas
gas drainage
