【摘要】 以普朗铜矿首采区3720中段为研究实例,统计分析研究区断层裂隙发育分布规律,建立受断层裂隙影响表现出强烈非均质性的水文地质数值模型,分别模拟分析65°与307°方向发育裂隙对溶质迁移影响.结果表明:具有强渗透性导水裂隙的岩体,有利于溶质迁移,隔水断层抑制溶质迁移;裂隙发育与地下水流方向一致时,有利于溶质沿着水流方向迁移;裂隙发育与地下水流方向相交时,受裂隙影响形成的强透镜体改变地下水流方向,从而改变溶质迁移方向.更多还原

【Abstract】 Statistical analysis of development and distribution of fault fissures at 3720 min the first mining region of Pulang Copper Mine was performed.Strongly heterogeneous hydro-geological numerical models influenced by fault fissures were set up.Effects of developmental distribution cracks on solute transport in 65°and 307°directions were simulated.Rock mass with strong permeability water-conducting fissure was found favorable for solute transport,water-blocking fault was found to inhibit solute transport.The direction of fracture development was found consistent with direction of groundwater flow,which would be beneficial for solute transport along water-flow direction.When direction of fracture development intersects with that of groundwater flow and the strong lens affected by fracture changes direction of groundwater flow,direction of solute transport is changed.更多还原