掘进煤巷气相压裂瓦斯涌出规律研究  

Research on Gas Phase Fracturing Gas Release Law in Tunneling Roadway

作　　者：张肖峰 张军胜 王晓东 范延昌 ZHANG Xiaofeng;ZHANG Junsheng;WANG Xiaodong;FAN Yanchang

机构地区：[1]山西阳泉煤业集团,山西阳泉045400 [2]河南理工大学煤层气/瓦斯地质工程研究中心,河南焦作454000 [3]中原经济区煤层(页岩)气河南省协同创新中心,河南焦作454000

出　　处：《山西焦煤科技》2017年第11期35-38,47,共5页Shanxi Coking Coal Science & Technology

摘　　要：通过对新元煤矿31004掘进工作面进行气相压裂试验,分析总结出实施气象压裂后的瓦斯涌出规律:巷道回风流中瓦斯浓度升高出现一个峰值,主要原因是气相压裂的扰动,煤层造成裂缝,煤层瓦斯沿裂缝涌向巷道;实施气相压裂措施后,煤巷掘进过程中,瓦斯涌出均衡,而且数据监测显示,双孔气相压裂后割煤时的瓦斯涌出量大于单孔压裂后割煤时的瓦斯涌出量。实施气相压裂措施后,实现了煤巷安全高效快速掘进。By fracturing with phase transition test on No.31004heading face in Xinyuan Coal Mine,the paper analyzed the gas emission law after implementation of fracturing with phase transition.After the fracturing,due to the disturbance of fracturing,the gas inside the seam gushes into the roadway along the crack,a concentration peak emerges in the return air flow of the roadway.The gas emission keep balanced during coal tunneling.The monitoring shows that the gas emission with double borehole is much larger than the single borehole one.Fracturing with phase transition contribute greatly to the exploration in a safe and efficient way.

关 键 词：气相压裂 瓦斯浓度 双孔压裂 安全掘进 

分 类 号：TD712.52[矿业工程—矿井通风与安全]