摘要
针对现阶段市政管网外渗现象导致的水体污染等一系列问题,提出利用地下水模拟(GMS)软件实现对某区域管网外渗的地下水进行数值模拟。在分析该区域水文地质的前提下建立水文地质概念模型并利用有限元差分法求解参数,同时建立水流水质数学模型实现降雨量预测以及污染检测。水文地质模型区源汇项计算结果显示,地下水补给资源总量和地下水总排泄量达到动态平衡,补给误差仅为4.74×104 m 3/a。水流和水质数学模型模拟效果较好。枯水年、平水年、丰水年对应的降水量分别为506.8,621.3,738.5 mm。
In view of a series of problems such as water pollution caused by the seepage phenomenon of municipal pipe network at present,the groundwater modeling system(GMS)was used to simulate the groundwater seepage of pipe network in a certain area.By analyzing the hydrogeology of this region,the concept model of hydrogeology was established,and the parameters were solved by using the finite element difference method.Meanwhile,a mathematical model of water flow and water quality was established to realize rainfall prediction and pollution detection.The calculation results of the source and sink terms in the hydrogeological model area show that the total amount of groundwater recharge resources and the total groundwater excretion reach a dynamic balance,and the recharge error is only 47400 m 3/a.The simulation results of water flow and water quality mathematical model are very good.The precipitation corresponding to low flow year,median water year and high flow year is 506.8 mm,621.3 mm and 738.5 mm respectively.
作者
宋雷震
SONG Leizhen(College of Mechanical and Electrical Engineering,Huainan Union University,Huainan 232038,China)
出处
《成都工业学院学报》
2022年第4期36-41,共6页
Journal of Chengdu Technological University
基金
安徽省高校优秀青年人才支持计划项目(gxyq2020118)
安徽省自然科学重点项目(KJ2019A1000)
淮南联合大学校级创新工作室(LZX2002)。
关键词
城市污水管网
污染
地下水
数值模拟
municipal pipe network
pollution
groundwater
the numerical simulation
