摘要
针对3125综放工作面瓦斯治理困难问题,通过数值计算及理论分析,对工作面前方塑性区宽度、上覆岩层裂隙带高度及O型圈分布进行确定。基于此提出了本煤层顺层水平预抽钻孔和顶板走向高位长钻孔技术措施对工作面瓦斯进行综合治理,取得了良好的技术及经济效果。
Aiming at the problem of gas control in 3125 fully mechanized caving face, through numerical calculation and theoretical analysis,the paper determines the width of plastic zone, the height of overlying strata fissure zone and the distribution of O-ring in front of face. Based on this, this paper puts forward the technical measures of bedding horizontal pre-pumping borehole and roof direction high length drilling to comprehensively control the gas in coal face, and obtains good technical and economical effect.
作者
赵宇鹏
Zhao Yupeng(Xishan Coal and Electricity Malan Mine,Shanxi Gujiao 03020)
出处
《煤矿现代化》
2018年第5期80-82,85,共4页
Coal Mine Modernization
关键词
高瓦斯
数值计算
理论分析
钻孔
综合治理
high gas
numerical calculation
theoretical analysis
drilling
comprehensive treatment
