煤矿大断面岩巷掘进爆破技术分析

Analysis of Blasting Technology for Large Section Rock Tunnel Excavation in Coal Mines

为进一步探究煤矿深部开采中的大断面岩石巷道掘进策略,本次研究以某煤矿企业的2101采区作为研究对象,结合该采区掘进效率不足的现状,首先对爆破参数进行理论分析与优化,而后应用优化后的参数进行现场爆破实验,对本次设计的掘进爆破技术方案进行检验。结果显示,本次技术方案取得了相对较优的技术指标,证明该方案具有一定的应用价值。

In order to further explore the excavation strategy of large section rock tunnels in deep mining of coal mines,this study takes the 2101 mining area of a certain coal mining enterprise as the research object.Combined with the current situation of insufficient excavation efficiency in this mining area,the blasting parameters are first theoretically analyzed and optimized.Then,the optimized parameters are applied for on-site blasting experiments to verify the excavation blasting technology scheme designed in this study.The results show that this technical solution has achieved relatively good technical indicators,proving that the solution has certain application value.