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为解决某矿跨采特殊巷道安全支护,以2114工作面跨采区总风平巷开采为背景,利用岩石力学试验分析出岩层内黏土岩和泥质胶结的砂岩岩性为强流变膨胀性;依据力学的理论知识,导出矿井采场采动后的影响深度为23.6 m;根据巷内围岩的破坏规律及特征,提出了适用此类条件下跨采巷道的围岩控制技术。并依据工业性试验验证了此方法能够保证巷道安全,取得了良好的支护效果。
In order to solve the safety support of cross-mining special roadway in a mine, taking the mining of the total windage in the cross-mining area of 2114 working face as the background, the rock mechanics test is used to analyze that the lithology of claystone and muddy cemented sandstone in the strata is strong rheological expansion Based on the theoretical knowledge of mechanics, the influence depth of mine stope after mining is derived to be 23.6 m. According to the breaking rules and characteristics of surrounding rock in the laneway, the surrounding rock control technology for cross-mining roadway under such conditions is put forward. According to the industrial test, it is verified that this method can ensure the safety of the roadway and achieve a good supporting effect.