突出危险煤层提高机掘工作面掘进速度试验研究  

Experiment Study of Improving Advancing Speed of Mechanical Heading Face in the Seam with Outburst

作　　者：魏新杰[1] 韦善阳[2] 徐小轩[2] 熊庄[2] 

机构地区：[1]冀中能源峰峰集团有限公司,河北邯郸056000 [2]中国矿业大学(北京)资源与安全工程学院,北京100083

出　　处：《煤矿安全》2011年第10期12-15,共4页Safety in Coal Mines

基　　金：国家"十一五"科技支撑计划资助项目(2009BAK54B03);国家自然科学基金重点资助项目(50834005)

摘　　要：大淑村煤矿是高瓦斯突出矿井，工作面突出比较严重，对此提出了水力松动配合排放钻孔，降低工作面突出危险性，提高工作面掘进速度的方法。水力压裂的过程中，瓦斯释放效果有明显好转，工作面瓦斯浓度急剧升高，随着注水过程的结束，瓦斯浓度又逐渐平稳下来，较以前没有采取水力压裂措施时要有较大的降低。水力压裂配合排放钻孔工作面防突措施参数选择合理，在大淑村矿取得较好的实验效果，平均进尺从120～140m／月提高到200m／月。Dashucun coal mine is a high gas and gas outburst mine. Gas outburst is quite serious at the working face, It is proposed the method of hydraulic loose drillings and draining drillings working together to reduce the risk of gas outburst, and raises the speed of ad- vance rate of working face. Gas release effect has been changed better obviously In the hydraulic fraeturingg process. And gas density elevates rapidly, along with the irrigation process. The gas density comes down gradually and keep steady with the end of the process. Compared with the method before without hydraulic fracturing measure , the gas density has been reduced obviously. The experiment effect is good at Dashueun coal mine for the good choice of parameter. The average footage enhances 50% , from 120 - 140 meters per month to the approximately 200 meters per month.

关 键 词：突出煤层 机掘工作面 掘进速度 

分 类 号：TD713[矿业工程—矿井通风与安全]