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针对某矿复杂开采条件下710工作面顺跨底板大巷开采的现状,为了使巷道能够正常使用,确保矿井的安全生产,采用回归分析和FLAC~(3D)数值模拟方法,预计跨采过程中底板巷道的最大变形量,根据预测结果对巷道的二次加固提出合理建议。分析加固后的巷道在正常开采期间的宏观矿压显现观测数值,综合巷道变形预测值与实际观测值,对巷道的可行性与安全性进行分析。
In order to make the tunnel work normally and ensure the safe production of coal mine, according to the status quo of 710 working face along the floor slab mining under complex mining conditions in a certain mine, regression analysis and FLAC 3D numerical simulation are used to predict the coal mining capacity in cross mining process The maximum deformation of the floor tunnel, according to the prediction of the secondary reinforcement of the roadway make reasonable recommendations. The observation data of the macroscopic rock pressure during the normal mining are analyzed and the prediction and feasibility of the roadway are analyzed to analyze the feasibility and safety of the roadway.