霍尔辛赫煤矿3603工作面瓦斯抽采钻孔优化设计

Optimization design of gas drainage boreholes in 3603 working face of horsinghe coal mine

针对霍尔辛赫矿3603工作面瓦斯抽采钻孔设计问题,采用理论计算和数值模拟进行了研究。根据地质构造将顺槽预抽设计分为五个区域,得到了抽采半径与抽采时间之间的关系,优化了各分区抽采钻孔间距,针对不同工作面,不同区域煤层设计,不同钻孔参数,使抽采钻孔的利用率及效率达到最高。

Aiming at the design of gas drainage boreholes in the 3603 working face of horsingh mine,theoretical calculation and numerical simulation are adopted to study:according to the geological structure,the design of pre drainage along the channel is divided into five areas,the relationship between the drainage radius and the drainage time is obtained,the spacing of drainage boreholes in each area is optimized,and different drilling parameters are designed for different coal seams in different working faces,So that the utilization rate and efficiency of extraction drilling can reach the highest.