摘要
多孔非稳定流承压含水层抽水试验是求取目标含水层水文地质参数的最为有效方法。通过在山东省高密市开展的1组孔隙型承压含水层抽水试验和1组隔水边界附近的基岩裂隙型承压含水层抽水试验,分析不同水文地质条件下正确求取水文地质参数犜和μ^(*)应套用的地下水动力学模型以及应当采取的计算方法。结果表明:离抽水井越远求得犜越大是人为误差的体现,适当调整配线的方法力求规避这种误差;水文地质边界的确定需要进行严谨的水文地质勘查工作并在试验中设置观测孔予以验证。本研究对于水文地质参数的精确求取,水源地规划和建设、地下水资源保护以及地下水污染防治等工作起到一定的参考作用。
Multi-well unsteady flow pumping test is the most effective method to obtain the hydrogeological parameters of the confined aquifer.Two pumping tests of pore type confined aquifer and bedrock fissure type near impervious boundary were developed in Gaomi,Shandong Province.The correct calculation method and groundwater dynamic model were analyzed to obtain the hydro geological parameters T and μ^(*)in different hydrogeology conditions.There is an artificial error that the parameter T increases with distance between the observation well and the pumping well according to the analysis.So that the method was adjusted to match the curve and avoid the errors.Determined hydro geological boundary requires strict hydrogeology survey and we should set observation well to verify the boundary.The analysis has a reference function for obtaining the hydro-geological parameters exactly,water source const ruction,protection of groundwater resources and groundwater antipollution.
作者
韩晔
郑玉萍
胡海博
牛文明
马武明
HAN Ye;ZHENG Yuping;HU Haibo;NIU Wenming;MA Wuming(Tianjin Geological Enviromment Monitoring Station,Tianjin 300191,China;Tianjin Geological Affairs Center,Tianjin 300041,China;Tianjin Institute of Geological Survey,Tianjin 300191,China)
出处
《南水北调与水利科技（中英文）》
CAS
CSCD
北大核心
2024年第S01期175-180,187,共7页
South-to-North Water Transfers and Water Science & Technology
基金
山东省高密市地氟病高发区地下水勘查与供水安全示范(鲁勘字(2007)03号)。
关键词
多孔非稳定流
承压含水层
抽水试验
水文地质条件
水文地质参数
multi-well
unsteady flow
confined aquifer
pumping test
hydrogeology condition
hydro geological parameters
作者简介
韩晔(1981-),男,山东济南人,高级工程师,主要从事水文地质、工程地质、环境地质研究。E-mail:abulodi1@126.com。
