摘要
分析了钻孔封孔质量、瓦斯涌出量、煤层中水分等与瓦斯抽采效果的关系。通过对比分析宏岩煤矿9~#+10~#煤层不同孔口负压的本煤层钻孔瓦斯流量及浓度,确定宏岩煤矿抽采负压在42~46 kPa最为合理。
Hole sealing quality,gas emission amount and the relation between gas drainage effect and water content in coal seam were analyzed.By comparing the amount of gas inflow and concentration of different negative pressures of borehole entrance at 9# and 10# of Hongyan Mine,it was determined that 42~46 kPa was the most reasonable negative pressure range.
出处
《中国煤炭》
北大核心
2017年第3期113-115,共3页
China Coal
关键词
瓦斯抽采
合理负压
封孔质量
瓦斯涌出量
水分
抽采效果
抽采浓度
gas drainage
reasonable negative pressure
hole sealing quality
gas emission amount
water content
drainage effect
drainage concentration
