张北煤矿地面钻孔抽采瓦斯及破断原因分析

Study on gas drainage technology by surface drilling and breaking cause in Zhangbei Coal Mine

摘要: 通过张北煤矿地面钻孔抽采瓦斯技术的试验,介绍了地面钻孔的设计及瓦斯抽采考察情况。通过对现场试验数据的考察,对地面钻孔的破断机制进行了分析,对今后地面钻孔合理布置及维护具有一定的指导意义。

Abstract: Introduce gas drainage and surface drilling technology,analyze breaking cause of surface drilling based on on-site data analysis.This technology would be of great significance to guide drill hole arrangement and maintenance.