摘要
瓦斯治理必须从源头抓起,这也充分体现"先抽后采"的瓦斯治理的方针。南山煤矿采取本煤层预抽、穿层钻孔临近煤层抽放、采空区抽放等综合治理方式,进一步提高了煤层瓦斯抽放率,为安全生产提供了可靠保证。
Gas treatment must start from the source.It fully embodies the ＂ gas drainage before exploitation ＂ of the gas treatment.In Nanshan Coal Mine, some comprehensive gas management ways are adopted,such as the gas pre-drainage in the local coal seam,the gas drainage in the near coal seam with drill through the coal seam,the gas drainage in goaf ect.The rate of gas drainage in the coal seam is further raised,in order to provide a reliable guarantee for production safety.
出处
《煤炭技术》
CAS
北大核心
2009年第5期94-96,共3页
Coal Technology
关键词
瓦斯预抽
长钻孔
穿层钻孔
gas drainage
long drill
drill through coal seam
