断层裂隙发育分布规律对岩体中地下水渗流及溶质迁移影响研究——以普朗铜矿首采区3720中段为例

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英文篇名：Impact of fault fracture development and distribution regularity on groundwater flow and solute transport in rock mass as exemplified at 3 720m of the first mining region of Pulang Copper Mine 作者：韩科学 ; 左锐 ; 覃荣高 英文作者：HAN Kexue;ZUO Rui;QIN Ronggao;College of Water Sciences,Beijing Normal University;Engineering Research Center of Groundwater Pollution Control and Remediation of Ministry of Education;Faculty of Land Resource Engineering,Kunming University of Science and Technology; 关键词：断层裂隙 ; 分布规律 ; 非均质性 ; 溶质迁移 英文关键词：fault fissure;;distribution regularity;;heterogeneity;;solute transport 中文刊名：北京师范大学学报(自然科学版) 英文刊名：Journal of Beijing Normal University(Natural Science) 机构：北京师范大学水科学研究院;地下水污染控制与修复教育部工程研究中心;昆明理工大学国土资源工程学院; 出版日期：2019-08-15 出版单位：北京师范大学学报(自然科学版) 年：2019 期：04 基金：国家自然科学基金资助项目(41402211,41672228,41877181,41867031) 语种：中文; 页：61-68 页数：8 CN：11-1991/N ISSN：0476-0301 分类号：P641.463;X131.2

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 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.

引文

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