华东地质2025，Vol.46Issue(1)：104-113,10.DOI:10.16788/j.hddz.32-1865/P.2024.23.004
城市管网渗漏地下水污染数值模拟研究:以深圳市某河间地块为例
Numerical simulation of groundwater pollution caused by leakage of urban pipe network:a case study on an interfluve in Shenzhen City
摘要
Abstract
Regarding the underground water pollution resulting from the leakage of urban underground pipe networks,this study selected a specific interfluve in Guangming District,Shenzhen City as the research area and conducted a detailed background investigation of the groundwater environment.Based on the investigation results,we established a hydrogeological conceptual model and a three-dimensional solute transport numerical model by employing the numerical simulation software(Groundwater Modeling System,GMS)to systematically explore the leakage effects of municipal drainage facilities on migration process of groundwater pollutants.The results demonstrated that there existed a pollution risk of groundwater quality in the study area,which was mainly indi-cated by nitrate,chloride,nitrite,total coliform bacteria and manganese ions,etc.Among them,the nitrate concen-tration was as high as 25 mg/L.The migration direction of pollutants in the leakage area of the pipe network was influenced by topographic characteristics and generally flows from the northeast to the southwest,with a migra-tion rate of approximately 0.5 m/d.Additionally,the sensitivity analysis of aquifer parameters indicated that the larger the permeability coefficient of the sediment,the more prominent the degree of groundwater flow and pollu-tant migration and diffusion,and the broader the diffusion range of the pollution plume.The research findings of-fer a scientific basis for the prevention and control of groundwater pollution caused by urban pipe network leak-age and contribute to facilitating the scientific solution and management practice of pipe network leakage issues in this area and similar environments.关键词
管网渗漏/地下水污染/数值模拟/深圳市光明区/河间地块Key words
pipe network leakage/groundwater pollution/numerical simulation/Guangming District,Shen-zhen/interfluve分类
地质学引用本文复制引用
刘亚辉,尹茂生,郭跃华,刘钰彬,唐彪,肖凯..城市管网渗漏地下水污染数值模拟研究:以深圳市某河间地块为例[J].华东地质,2025,46(1):104-113,10.基金项目
国家自然科学基金面上项目"生物扰动对红树林湿地地下水循环及溶解无机碳排放的影响(编号:42177046)"和企业委托技术开发横向课题"市政排水设施渗漏数值模拟研究(编号:STKJZX072022005)"联合资助. （编号:42177046）
