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本文通过对跨采巷道破坏的现场观测，分析了在跨采作用下，底板巷道的矿压显现及其破坏机理，进而提出了适合该矿特点的底板巷道的留设位置及其维护方法
In this paper, through on-site observation of the cross-mining roadway destruction, the formation pressure and its failure mechanism of the roadway in the floor under over-excavation are analyzed, and then the location of the underground roadway and its maintenance method