云南省文山州德厚水库三叠系岩溶水溶质运移规律

发布时间：2017-12-31 03:40

  本文关键词：云南省文山州德厚水库三叠系岩溶水溶质运移规律　出处：《昆明理工大学》2016年硕士论文　论文类型：学位论文

  更多相关文章： 德厚水库 渗透张量 弥散试验 溶质运移

【摘要】：地下水是人类不可或缺的自然资源,随着人类活动的频繁,地下水作为短时期内非可再生资源频频遭到污染与破坏。地下水污染情况的加重,使地下水污染预测与防治逐步成为了国际科学界的研究热点。本论文结合实际项目云南省文山州德厚水库地下水环境影响评价,对德厚水库集水范围内主要污染源所造成的三叠系岩溶地下水环境影响进行数值研究。本文在充分收集前人资料的基础上,通过大量的野外勘察和水文地质专项调查,系统阐述了德厚水库所在流域内区域地质背景、含水层组类型、水文地质条件。结合上述条件分析出德厚水库所在流域内主要污染源为三个渣厂,分别对三个主要污染厂进行了详细勘察及水文地质钻探,并进行水文地质试验和取样检测。将渣厂内水文地质试验所得数据进行归纳计算结合野外调查获得的地质内容,得出该地区的渗透系数、弥散系数、降雨入渗系数等相关水文地质参数。对研究区内岩溶洼地及裂隙测量数据进行统计分析,得出了区内岩溶洼地与裂隙发育的优势方向相吻合的规律,总结出德厚水库所在研究区内渗透张量为一个平卧的椭球体,以“渗透张量”理论为指导思想进行相关水文地质参数的应用。通过取样检测分析出三个主要污染厂所在区域内污染现状,运用GMS软件中的MODFLOW和MT3D模块进行地下水流场及污染物溶质运移模拟,将现状与模拟结果比对调整,确保模拟准确性。本论文量化地描述了污染源分布及污染羽扩展范围,对在三叠系岩溶地下水中污染物的溶质运移规律进行系统性分析,为德厚水库建设环境影响提供一定的参考依据。
[Abstract]:Groundwater is the indispensable natural resources of human, with frequent human activities as non renewable resources, groundwater pollution and destruction has frequently been a short period of time. The increase of groundwater pollution, the prediction and control of groundwater pollution has gradually become the research focus of the international scientific community. This paper combines the actual project of Yunnan Province Wenshan Dehou reservoir water environment impact assessment, numerical study of karst groundwater environment in the impact on the main pollution source of thick reservoir catchment area. Based on the full collection of previous data, through a lot of field survey and hydrogeological investigation, systematically expounded the regional geological background of the thick reservoir watershed, aquifer type hydrogeological conditions. Analysis of the main pollution sources in the basin as the thick reservoir where three slag plant combined with the above conditions, respectively, to The three main pollution factory conducted a detailed investigation and hydrogeological drilling, and hydrogeological test and testing samples. The data obtained in slag hydrogeological test are summarized in combination with geological field investigation to obtain content calculation, the permeability coefficient of the area, dispersion coefficient, rainfall infiltration coefficient and other related hydrogeological parameters. Statistical analysis of the study area of karst depression and crack measurement data, the dominant direction of karst depression and fracture zone is consistent with the law, summed up the ellipsoid thick reservoir where the study area is a horizontal permeability tensor, the permeability tensor theory for application related hydrogeological parameters of the guiding ideology. By sampling detection and analysis three main pollution pollution status of plant located within the region, the use of GMS software MODFLOW and MT3D module flow and groundwater pollution pollution Simulation of solute transport, the present situation and the simulation results of adjustment, ensure the accuracy of simulation. This paper describes quantitatively the distribution and pollution source pollution plume spread, systematic analysis of the law of solute transport in groundwater contaminants in karst, and to provide reference for water base construction Dehou environmental impact.

【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TV139.1
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本文编号：1357966