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根据现场调查和实测结果,分析了马路坪矿软岩巷道围岩变形和破坏的主要原因。通过数值模拟计算,分析了巷道围岩破碎区、塑性区范围和应力位移分布规律,为巷道合理支护形式的选择提供理论依据。
According to the field survey and the measured results, the main reason of deformation and failure of surrounding rock of soft rock roadway in Maluoping Mine is analyzed. Through the numerical simulation and calculation, the distribution rules of surrounding rock crushing zone, plastic zone and stress-displacement are analyzed, which provides a theoretical basis for the selection of the reasonable supporting form of roadway.