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。
Based on the measured results and field survey, the cause of the failure and deformation of the surrounding rock around soft rock laneway in MaLuPing mine are discussed. Through numerical simulation with FLAC3D , the ranges of the fragmentation area and the plastic area, the distribution of stresses and strains of the surrounding rock around laneway are analyzed to put forward theoretical basis for the choice of reasonable support form.