摘要
通过对采空区瓦斯赋存分布和涌出机理研究,结合工作面顶板岩性,合理布置顶板走向高位钻孔,使高位钻孔起到同孔多用,即瓦斯抽放孔兼作灌浆孔,通过钻孔向采空区灌浆,达到采空区防灭火的目的。
Through research on gas distribution and emission mechanism in goaf, eombining with the characteristic of roof at face, we ean arrange high level boreholes rationally, use them for gas drainage and pouring, achieve the purpose of fire prevention and extinguishing in goal through boreholes.
出处
《煤炭技术》
CAS
北大核心
2009年第10期69-70,共2页
Coal Technology
关键词
高位钻孔
瓦斯防治
防灭火
high level boreholes
gas prevention
fire prevention and extinguishing