摘要
对影响定向条带预抽瓦斯效果和可行性的主要因素进行了分析、研究,根据榆树田煤矿煤层瓦斯赋存特征和煤体强度情况,经方案比选确定采用定向条带预抽瓦斯技术进行消突试验。试验表明:试验区域经效果检验,定向条带区域防突措施有效;采用定向长钻孔预抽煤巷条带瓦斯治理技术大大缩短了消突时间,取得了较好的抽采效果,更好地促进了矿井的"抽、掘、采"平衡,采用此项技术进行区域瓦斯治理是可行的。
The main factors affecting the effect and feasibility of directional strip pre-extraction are analyzed and studied. According to the occurrence characteristics of coal seam gas and coal body strength in Yushutian coal mine,through scheme comparison, it is determined to adopt directional strip pre-extraction technology to eliminate outburst test. Test shows that test area tested, effective outburst prevention measures in directional strip area,using directional long borehole pre-extraction technology to control strip gas in roadway can effectively shorten outburst elimination time,good extraction results have been achieved, better promote the mine "pumping, excavation, mining" balance, it is feasible to use this technology for regional gas control.
作者
张劲松
ZHANG Jin-song(Chongqing Research Institute,China Coal Technology and Engineering Group,Chongqing 400037,China)
出处
《煤炭技术》
CAS
2020年第9期102-105,共4页
Coal Technology
关键词
定向长钻孔
煤巷条带
轨迹测定
消突时间
区域防突
directional long borehole
strip of coal roadway
trajectory determination
eliminating outburst danger time
regional outburst prevention
