摘要
介绍了突出煤层掘进工作面瓦斯抽放方法试验,考察得出了巷帮抽放长钻孔合理参数布置,分析了深孔预裂爆破机理。利用工作面深孔爆破技术来增大煤层透气性,提高卸压瓦斯抽放效果,大大减少了掘进工作面突出危险性,提高了煤巷单进。提出了突出煤层掘进工作面瓦斯治理新观念。
In this paper,gas drainage experiments at the tunneling working face in gassy coal seam were carried out and investigated.The proper parameters of long drilling in the tunnel wall were provided.A new method of deep hole presplitting was suggested to enhance the air permeability and improve the gas release efficiency.The results show that this method reduces the outburst risk and increases the driving progress greatly.
出处
《煤炭技术》
CAS
北大核心
2009年第12期81-85,共5页
Coal Technology
基金
国家973计划前期研究专项(2006CB708408)
国家自然科学基金重点项目(50534090)
安徽省高校科技创新团队计划项目(2006KJ005TD)
国家科技支撑计划(2007BAK29B06)
关键词
突出煤层
掘进工作面
瓦斯抽放
深孔爆破
outburst coal seam
tunneling face
gas drainage
deep hole blasting
