煤
煤
매
COAL
2014年
2期
1-3
,共3页
小角度%长距离%石门快速揭煤%底板瓦斯抽采导巷
小角度%長距離%石門快速揭煤%底闆瓦斯抽採導巷
소각도%장거리%석문쾌속게매%저판와사추채도항
small angle%long distant%Shimen rapid cross -cut coal uncovering%gas drainage roadway of floor
朱集西煤矿中央矸石运输机巷小角度揭11-2煤层，揭煤长度达80 m左右。为了解决在揭煤工作面迎头施工突出危险性预测钻孔和预抽消突钻孔效果不理想这一问题，采用在揭煤区域煤层底板施工瓦斯抽采导巷对揭煤区域进行突出危险性预测和区域消突。实施消突措施后，残余瓦斯压力、残余瓦斯含量均远低于突出临界值，预抽钻孔工程量减少40％，揭煤时间大大缩短。
硃集西煤礦中央矸石運輸機巷小角度揭11-2煤層，揭煤長度達80 m左右。為瞭解決在揭煤工作麵迎頭施工突齣危險性預測鑽孔和預抽消突鑽孔效果不理想這一問題，採用在揭煤區域煤層底闆施工瓦斯抽採導巷對揭煤區域進行突齣危險性預測和區域消突。實施消突措施後，殘餘瓦斯壓力、殘餘瓦斯含量均遠低于突齣臨界值，預抽鑽孔工程量減少40％，揭煤時間大大縮短。
주집서매광중앙안석운수궤항소각도게11-2매층，게매장도체80 m좌우。위료해결재게매공작면영두시공돌출위험성예측찬공화예추소돌찬공효과불이상저일문제，채용재게매구역매층저판시공와사추채도항대게매구역진행돌출위험성예측화구역소돌。실시소돌조시후，잔여와사압력、잔여와사함량균원저우돌출림계치，예추찬공공정량감소40％，게매시간대대축단。
The exposing coal uncovering technique will be applied in a small angle at main roadway in Zhujixi Coal Mine and the length of coal uncovering is about 80 m.It is difficult to drill in the head working face and the gas pre -drainage technique does not work ef-fectively .In order to solve these problems ,the outburst danger prediction technique and regional outburst elimination technique were ap -plied in the gas drainage roadway of floor .After carrying out these techniques ,the residue gas pressure and gas content are both below the outburst index .The pre-drainage drilling work reduces in 40%and the cross-cut coal uncovering time was advanced .
