| 岩体裂隙网络矿物溶解-沉淀-迁移数值模拟 |
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| 引用本文： | 孙旭曙,王科峰,柴军瑞,张志滨.岩体裂隙网络矿物溶解-沉淀-迁移数值模拟[J].水文地质工程地质,2011,38(6):84-89. |
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| 作者姓名： | 孙旭曙 王科峰 柴军瑞 张志滨 |
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| 作者单位： | 武汉大学水利水电学院;中国水电顾问集团中南勘测设计研究院;西安理工大学水利水电学院;三峡大学水利与环境学院;骆马湖水利管理局;邳州河道管理局; |
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| 基金项目： | 国家自然科学基金委员会、二滩水电开发有限责任公司雅砻江水电开发联合研究基金项目(50579092); 教育部“新世纪优秀人才支持计划”资助项目(N2CET-05-0679); 三峡大学科技创新团队资助项目(603402) |
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| 摘 要： | 为了研究岩体裂隙网络中矿物溶解-沉淀的变化规律及其对溶质运移的影响,联合矿物溶解-沉淀动力学模型、渗流模型和溶质运移模型建立了岩体裂隙网络矿物溶解-沉淀-迁移模型,经过水溶液络合物计算和矿物成分分析,对研究区域方解石溶解-沉淀作用及溶质运移进行了数值模拟。得出的结论主要有:(1)受裂隙网络分布的影响,溶质运移分布极不均匀,溶质主要通过连通的裂隙从上游向下游迁移;(2)考虑方解石的溶解-沉淀作用之后,在溶解区域溶质浓度增加,在沉淀区域溶质浓度减少;(3)通过对比分析,可知方解石溶解-沉淀受水溶液中CO23-浓度影响较大。
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| 关 键 词： | 裂隙网络 地球化学模拟 矿物溶解-沉淀 溶质运移 |
Numerical simulation of mineral dissolution-precipitation-transportation in a fracture network of rock-mass |
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| SUN Xu-shu
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WANG Ke-feng
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CHAI Jun-rui
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ZHANG Zhi-bin.Numerical simulation of mineral dissolution-precipitation-transportation in a fracture network of rock-mass[J].Hydrogeology and Engineering Geology,2011,38(6):84-89. |
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| Authors: | SUN Xu-shu WANG Ke-feng CHAI Jun-rui ZHANG Zhi-bin |
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| Institution: | 1.School of Water Resources and Hydropower,Wuhan University,Wuhan,430072,China; 2.Mid-South Design and Research Institute,CHECC,Changsha 410014,China; 3.College of Hydroelectric Engineering,Xi’an University of Technology,Xi’an 710048,China; 4.College of Hydropower Engineering and Environment,China Three Gorges University, Yichang 443002,China;5.Pizhou Riverway Administrative Bureau,Luomahu Water Resources Administrative Bureau,Xuzhou 221300,China |
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| Abstract: | In combination with kinetic models of mineral dissolution-precipitation,numerical simulation of calcite dissolution-precipitation and solute transport in an investigative zone is accomplished in this paper in order to study the variation law of mineral dissolution-precipitation and the effect of solute transport.The main conclusions are drawn as follows:(1) Distribution of solute transport is discontinuous because of the effect of fracture network distribution and the solute transportation is mainly through... |
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| Keywords: | fracture network geochemical modeling mineral dissolution-precipitation solute transport |
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