铜仁学院学报
銅仁學院學報
동인학원학보
Journal of Tongren University
2015年
4期
141-146
,共6页
Ansys模拟%突出煤层%顺层钻孔%预抽瓦斯
Ansys模擬%突齣煤層%順層鑽孔%預抽瓦斯
Ansys모의%돌출매층%순층찬공%예추와사
ansys simulation%the outburst coal seam%borehole drilled along seam%gas pre-drainage
选取林华煤矿9号煤层2093回采工作面作为研究试验区,用ansys模拟软件研究了低透气性突出煤层顺层钻孔预抽瓦斯及防突技术.研究结果表明:选取 1.8m 钻孔间距抽采效果较好,经抽采效果检验,2093回采工作面回采区域煤层残余瓦斯含量降低到6.21m3/t~6.82 m3/t,残余瓦斯压力降低到0.28MPa~0.58MPa,煤层瓦斯抽采率由24.56%提高到59.89%,该技术对低透气性突出煤层的瓦斯抽采及防突都有良好的效果.
選取林華煤礦9號煤層2093迴採工作麵作為研究試驗區,用ansys模擬軟件研究瞭低透氣性突齣煤層順層鑽孔預抽瓦斯及防突技術.研究結果錶明:選取 1.8m 鑽孔間距抽採效果較好,經抽採效果檢驗,2093迴採工作麵迴採區域煤層殘餘瓦斯含量降低到6.21m3/t~6.82 m3/t,殘餘瓦斯壓力降低到0.28MPa~0.58MPa,煤層瓦斯抽採率由24.56%提高到59.89%,該技術對低透氣性突齣煤層的瓦斯抽採及防突都有良好的效果.
선취림화매광9호매층2093회채공작면작위연구시험구,용ansys모의연건연구료저투기성돌출매층순층찬공예추와사급방돌기술.연구결과표명:선취 1.8m 찬공간거추채효과교호,경추채효과검험,2093회채공작면회채구역매층잔여와사함량강저도6.21m3/t~6.82 m3/t,잔여와사압력강저도0.28MPa~0.58MPa,매층와사추채솔유24.56%제고도59.89%,해기술대저투기성돌출매층적와사추채급방돌도유량호적효과.
Select the Lin-Hua Coal Mine No. 9 coal seam in 2093 working face as the research object test area, Study on Pre-drainage seam gas with borehole drilled seam along seam and outburst prevention technology in Low permeability outburst mine with ANSYS software. The research results show that: the selection of 1.8m borehole spacing drainage effect is better, The pumping effect test, residual gas content of 2093 working face mining area of coal seam is reduced to 6.21 m3/t ~ 6.82 m3/t, the residual gas pressure is reduced to 0.28MPa ~ 0.58MPa, coal seam gas pumping rate was increased from 24.56% to 59.89%, the technology of gas permeability of outburst coal seam of low drainage and outburst prevention have good results.