摘要
煤矿当中产生的瓦斯大部分来自于采空区,也就是回采工作面,因为采空区有较大的瓦斯流量且来源较为稳定,是需要治理瓦斯的关键区域。因此,本文针对煤矿采空区预排瓦斯等值带宽度运用做出了进一步探究,详细分析了沿空掘巷防突原理、沿空条带煤柱卸压带宽度研究、瓦斯抽放优选运用原则以及大巷煤柱工作面Ⅳ段上顺槽沿空掘巷突出危险性评价。
Most of the gas produced in coal mines comes from the goaf,that is,the working face.Because the goaf has a large gas flow and a relatively stable source,it is the key area to control gas.Therefore,this paper makes a further study on the application of gas equivalence band width in pre-exhaust of coal mine goaf,and analyzes in detail the outburst prevention principle of gob-side entry driving,the research on the width of strip coal pillar pressure relief zone along gob-side,the optimal application principle of gas drainage,and the outburst risk assessment of gob-side entry driving along the upper gateway of section IV of coal pillar working face in alleys.
作者
王恩
Wang En(He'nan Xinzheng Coal and Electricity Co.,Ltd.,He'nan,452384)
出处
《当代化工研究》
2021年第9期31-32,共2页
Modern Chemical Research
关键词
煤矿采空区
预排瓦斯
等值带宽度
coal mine goaf
pre-exhaust gas
equivalence band width
