摘要
针对平宝公司二1-2厚煤层高瓦斯压力、高瓦斯含量、煤体松软、透气性差、喷孔严重、穿层钻孔抽放瓦斯效果不理想的情况,在理论分析的基础上,经过现场水力冲孔试验,考察出了适合该矿井的水力冲孔工艺流程及技术参数。
Aiming at the situations of high gas pressure and content, soft coal body, low permeability as well as serious borehole out- burst and nonideal gas drainage effect in cross -seam drillings of Pingbao Company Ⅱ1-2coal seam, the paper has been investigated suitable technological process and parameters for this mine based on theory analysis, on - site experiment of hydraulic, flushing in bore- hole.
出处
《煤矿安全》
CAS
北大核心
2013年第9期8-10,共3页
Safety in Coal Mines
关键词
水力冲孔
工艺系统
技术参数
喷嘴
hydraulic flushing
process system
technical parameters
nozzle
