大柳塔煤矿降低巷道掘进率技术实践

Practice of reducing roadway tunneling rate in Daliuta coal mine

在矿井开采设计中,为了提高矿井经济效益、保证采掘接续,在保证开采系统合理的情况下,应尽量把巷道的掘进工程量降到最低程度。大柳塔煤矿在降低巷道掘进率上采取边界综采工作面顺槽单巷布置、不规则边界处综采工作面切眼调斜布置、减少联巷数量、优化支护设计、增加工作面推进长度和倾斜长度、利用已有巷道布置工作面等措施,取得了巨大的经济与社会效益。

In the design of coal mine,in order to improve the mine economic benefits and ensure the continuation of mining and tunneling,the roadway tunneling rate should be reduced to the lowest level in the condition of ensuring the reasonable of mining. By optimizing the layout of roadways and working faces in Daliuta coal mine,the roadway tunneling rate was significantly reduced,and the tremendous economic and social benefits were achieved.