近距离保护层开采瓦斯治理效果  

Gas control result of coal mining in close distance protective seam

作　　者：姚军朋[1] 贾澄冰 张子敏[1] 张玉贵[1] 贾天让[1] 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454003 [2]潞安矿业(集团)有限责任公司五阳煤矿,山西襄垣046205

出　　处：《煤炭科学技术》2008年第1期53-56,97,共5页Coal Science and Technology

基　　金：国家自然科学基金重点项目资助项目(50534070);教育部高等学校博士学科点专项科研基金资助项目(20060460001)

摘　　要：考察了平煤五矿近距离保护层开采瓦斯治理效果,结果表明,近距离保护层开采使突出煤层的瓦斯含量、瓦斯压力急剧降低,钻孔初始瓦斯流量增大,衰减系数显著减小,大量瓦斯被释放,有效地消除了被保护层煤与瓦斯突出的危险性,为安全高效开采提供了技术保障。An investigation was made the gas control results of the coal mining operation in a close distance protective seam. The results showed that the mining operation in close distance protective seam could rapidly release the gas content and gas pressure in the outburst seam. The gas flow quantity in the borehole was increased at the initial time and the attenuation coefficient was obviously reduced. The seam gas was greatly released from the seam, which could effectively reduce the dangerous of the coal and gas outburst in the protected seam and could proved the technical guarantee to the safety and high efficient mining operation.

关 键 词：近距离保护层 瓦斯治理 效果考察 煤与瓦斯突出 

分 类 号：TD823.81[矿业工程—煤矿开采]