摘要
为了确定突出煤层水力冲孔消突的合理出煤率,采用现场考察方法,统计分析了水力冲孔钻孔瓦斯抽采效果、煤层残余瓦斯含量、钻屑解吸指标和风排瓦斯量与出煤率之间的关系。综合各指标需要满足相关临界值时的出煤率,在保证生产的前提下考虑一定的安全余量,确定试验煤层合理出煤率为不低于10‰。
In order to determine the reasonable coal mining ratio in outburst coal seam by hydraulic flushing,the field test method is used to statistically analyze the relationship between gas extraction effect,residual gas content in coal seam,desorption index of drilling cuttings,gas drainage amount and coal extraction rate.The reasonable coal mining rate of test coal seam is determined to be no less than 10‰after considering certain safety margin under the premise of ensuring production.
作者
郝从猛
HAO Congmeng(School of Mine Safety,North China Institute of Science and Technology,Yanjiao,065201,China)
出处
《华北科技学院学报》
2022年第4期60-64,共5页
Journal of North China Institute of Science and Technology
基金
廊坊市科学技术研究与发展计划项目(2021013169)。
关键词
水力冲孔
煤与瓦斯突出
出煤率
瓦斯抽采
hydraulic flushing
coal and gas outbursts
ratio of coal mining
gas extraction
