摘要
以陈四楼煤矿北部西翼回风联络巷煤巷段为对象进行水力冲孔试验,对比分析了试验区域水力冲孔前后水力冲孔的孔径、冲煤量,煤层顺层钻孔的瓦斯流量、瓦斯浓度、瓦斯含量的变化情况。试验表明水力冲孔措施能够增加煤层透气性,提高瓦斯抽采效率,缩短抽采时间,达到消突的目的。
Hydraulic punching test was applied taking the air-returning roadway in northern west wing of Chensilou mine as the test site. The change of hole diameter,flushing coal amount in hydraulic flushing holes and gas flow,gas flow rate,gas content in bedding drilling holes. The test shows hydraulic punching measures will increase seam permeability,improve efficiency of gas flushing,shorten extraction time and achieve the purpose of eliminating break.
出处
《煤炭技术》
CAS
北大核心
2016年第11期137-139,共3页
Coal Technology
关键词
水力冲孔
瓦斯流量
煤层透气性
hydraulic flushing
gas flow
coal seam permeability
