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针对大同煤矿集团有限责任公司忻州窑矿14_(-2)~#集中轨道巷掘进过程中过上分层采空区隔离煤柱矿压显现剧烈,采用数值模拟软件,系统的分析并给出了新的巷道支护参数和支护方法,其次,基于新的支护参数和方法,研究了进、出煤柱巷道围岩的应力分布规律和破坏规律,最后通过工程实践进行验证,实现了14_(-2)~#集中轨道巷安全支护,为类似条件下巷道支护提供了依据和参考。
In view of the intense coal seam pressure of isolated coal pillar in stratified mined-out area during the excavation process of 14 _ (- 2) ~ # concentrated railway tunnel in Xinzhouyao Mine of Datong Coal Mine Group Co., Ltd., the numerical simulation software was used and the system was analyzed and given New roadway support parameters and support methods. Secondly, based on the new support parameters and methods, the stress distribution and failure rules of the surrounding rock of the entry and exit pillars are studied. At last, the engineering practice is used to verify that the 14 ~ (-2) ~ # centralized railroad road safety support, provided basis and reference for roadway support under similar conditions.