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.
Statistical analysis of development and distribution of fault fissures at 3720m in 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.
作者
韩科学
左锐
覃荣高
HAN Kexue;ZUO Rui;QIN Ronggao(College of Water Sciences,Beijing Normal University,100875,Beijing,China;Engineering Research Center of Groundwater Pollution Control and Remediation of Ministry of Education,100875,Beijing,China;Faculty of Land Resource Engineering,Kunming University of Science and Technology,650093,Kunming,Yunnan,China)
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2019年第4期481-488,共8页
Journal of Beijing Normal University(Natural Science)
基金
国家自然科学基金资助项目(41402211,41672228,41877181,41867031)
关键词
断层裂隙
分布规律
非均质性
溶质迁移
fault fissure
distribution regularity
heterogeneity
solute transport
