底抽巷在高瓦斯矿井中的综合应用

Comprehensive Application of Bottom Drainage Roadway in High Gas Mine

针对贵州省毕节市金沙县某煤矿近距离煤层群瓦斯含量高、煤层巷道掘进困难、采掘失调严重、经济效益差等问题,提出了底板瓦斯抽放巷综合利用技术。实践表明,该矿采用煤层底板瓦斯抽放巷综合利用技术后,有效解决了矿井之前生产过程中存在的问题,使该矿在组织生产过程中的安全性、经济性、工作效率等方面都得到有效提高。

In view of the problems of high gas content in close coal seam group,difficulty in driv⁃ing coal seam roadways,serious mining imbalance and poor economic benefits in a coal mine in Jinsha coun⁃ty,Bijie,Guizhou province,the comprehensive utilization technology of floor gas drainage roadways is put for⁃ward.The practice shows that the problems existing in the production process before the mine are effectively solved after the comprehensive utilization technology of coal seam floor gas drainage roadway is adopted in the mine.The safety,economy and working efficiency of the mine in the production process are effectively im⁃proved.