摘要
针对赵庄矿1307工作面煤层松软低透气性、瓦斯抽采难的问题,尝试在底抽巷穿层钻孔中采用钻孔注气置换促抽的方法,合理布置了注气孔和抽放孔,并对煤层注气效果进行了测试,最终得出注气促抽试验是可行的,提高了煤层瓦斯抽采效果,从而保障1307工作面安全高效回采。
Aiming at the problems of soft and low permeability coal seam and diffieulty of gas drainage al 1307 working face ot Zhaozhtlang Coal Mine, we try. to use the method of gas injection and replaeement to promote the drainage in the hole drilling of floor drainage roadway, and arrange the gas injection holes and drainage holes reasonably and test the effecl of gas injection; the resuhs show that the experimental study of gas injeetion and promoting drainage is feasible, whieh improves the effect of coal seam gas drainage and so as to ensure the safe and efficient mining of 1307 working faee.
出处
《煤矿安全》
北大核心
2017年第6期16-19,共4页
Safety in Coal Mines
基金
国家自然科学基金青年科学基金资助项目(50904033)
辽宁省自然科学基金资助项目(20102090)
关键词
松软低透煤层
煤层注气
置换促抽
布孔方式
瓦斯抽采
soft and low permeability coal seam
gas injection in coal seam
replacement and promoting drainage: hole arrange-merit
gas drainage