硬质巷道井下高效掘进工艺的研究

为了解决薛虎沟煤业井下巷道掘进速度慢、效率低、成本高的不足,提出了一种新的井下高效掘进工艺,采用高效钻装机作为巷道快速掘进设备,针对井下围岩特性,采用数值模拟分析法确定巷道爆破方案,采用多工序平行交叉作业方式实现了井下巷道的高速掘进。根据实际应用表明新的掘进方案将支护效率提升24.4%,将巷道掘进速度提升了67.7%,有效提升了巷道掘进经济性。

Study on Underground High Efficiency Driving Technology of Hard Roadway

In order to solve the shortcomings of slow driving speed,low efficiency and high cost of underground roadway in Xuehugou Coal Industry,a new high-efficiency underground tunneling technology is put forward,which uses high-efficiency drilling machine as roadway fast driving equipment,according to the characteristics of underground surrounding rock,the blasting scheme of roadway is determined by numerical simulation analysis,and the high-speed tunneling of underground roadway is realized by multi-process parallel and cross operation.According to the practical application,the new tunneling scheme increases the support efficiency by 24.4% and the roadway driving speed by 67.7%,which effectively improves the economy of roadway driving.