2条河流取水Wilson解析解的局限性分析  

Analysis on the Limitation of Wilson's Analytical Solution for Pumping Water Between Two Streams

作　　者：李冰冻[1] 张新华[1] 王佳[1] 张小霞[1] 李强[1] 

机构地区：[1]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065

出　　处：《四川大学学报（工程科学版）》2016年第1期50-54,共5页Journal of Sichuan University (Engineering Science Edition)

基　　金：国家自然科学基金资助项目(51379137;51579162;81200781)

摘　　要：抽取地下水将会影响抽水井附近地表水体的水量。为探讨取用地下水对地表水体的影响,给出抽水井取水对2条河流水量影响的概念性模型,采用3维地下水数值模拟软件IGW(interactive ground water model)对该概念性模型进行了数值模拟,并与Wilson解析解进行对比。分析结果表明,在给定相同条件下,3维模拟结果与解析解基本吻合。随后利用3维地下水模型IGW模拟了河道形状、地层异质性以及存在有黏土层等复杂环境地质条件下,在2条不同深度河流之间布置取水井取水对河流的影响。研究结果表明,Wilson解析模型在预测平行均质性地层内取水井对2条河流的影响其预测结果与实际相符合,但其忽略了河道形状、地层异质性以及存在有黏土层等复杂环境地质对取水的影响,而在这些复杂情形下3维数值模拟结果则会给出更为精确的结果。The conceptual model for effect of pumping well on two streams was developed. The three-dimensional ground water model（ interactive ground water model,IGW） was applied for simulating the conceptual model. All of the numerical solution was compared with Wilson＇s analytical solution. Several examples were presented for illustrating the effect of pumping well on streams,which demonstrated stream depletion affected by the river shapes,the anisotropy and the clay lens in aquifer individually. The results showed the priority and the limitation of Wilson＇s analytical solution.

关 键 词：地下水 含水层 河流损耗 取水量 

分 类 号：TV641[水利工程—水利水电工程]