中国煤炭
中國煤炭
중국매탄
CHINA COAL
2014年
1期
110-113,117
,共5页
瓦斯抽采%流量衰减%预抽效果%瓦斯含量
瓦斯抽採%流量衰減%預抽效果%瓦斯含量
와사추채%류량쇠감%예추효과%와사함량
gas drainage%flow depletion%pre-drainage effect%gas content
为了解决赵庄煤业在煤层预抽过程中出现的流量衰减快、预抽效果不理想的问题，基于现场试验，探讨了不同抽采模块对预抽效果的影响。结果表明采用100 m×45 m布置两排钻孔的抽采模块是适用于赵庄煤业的最优方案，抽采34 d 后即可将煤层瓦斯含量降低到8 m3/t以下，而且煤巷掘进期间瓦斯不超限，具有较好的安全效益和经济效益。
為瞭解決趙莊煤業在煤層預抽過程中齣現的流量衰減快、預抽效果不理想的問題，基于現場試驗，探討瞭不同抽採模塊對預抽效果的影響。結果錶明採用100 m×45 m佈置兩排鑽孔的抽採模塊是適用于趙莊煤業的最優方案，抽採34 d 後即可將煤層瓦斯含量降低到8 m3/t以下，而且煤巷掘進期間瓦斯不超限，具有較好的安全效益和經濟效益。
위료해결조장매업재매층예추과정중출현적류량쇠감쾌、예추효과불이상적문제，기우현장시험，탐토료불동추채모괴대예추효과적영향。결과표명채용100 m×45 m포치량배찬공적추채모괴시괄용우조장매업적최우방안，추채34 d 후즉가장매층와사함량강저도8 m3/t이하，이차매항굴진기간와사불초한，구유교호적안전효익화경제효익。
In order to solve such problems as fast flow depletion and bad pre-drainage effect during the gas pre-drainage in Zhaozhuang Mining Industry Company,the influences of different gas drainage modules on the pre-drainage effect were discussed.The results showed that the opti-mum drainage module is two lines of boreholes arranged in the area of 100 m×45 m.After gas drainage for 34 days,the gas cotent in the seam decreased to below 8 m3/t,and the gas content did not exceed the limit during the coal roadway tunneling,achieving the relatively good safety and economic benefits.
