基于拓扑管网法的抽水试验渗透系数反演研究  

Inversion study of permeability coefficient in pumping test based on topological pipe network method

作　　者：王应保 甘彬[1] 李天雨 WANG Ying-bao;GAN Bin;LI Tian-yu(Guangxi Water&Power Design Institute Co.,Ltd.,Nanning 530023,China)

机构地区：[1]广西水利电力勘测设计研究院有限责任公司,南宁530023

出　　处：《广西水利水电》2024年第3期1-5,26,共6页Guangxi Water Resources & Hydropower Engineering

摘　　要：抽水试验是获取当地水文地质参数的常规手段。本文根据环北部湾广西水资源配置工程郁江那凤干线现场抽水试验,建立多孔抽水拓扑管网模型,并将序列二次规划法优化方法(SQP)应用于渗透系数反演计算中,最终获得工程区内承压含水层平行断层方向和垂直断层方向的渗透系数,与实测数据对比,反演效果良好。该方法能获取各向异性渗透系数,为抽水试验反演地下水参数提供了一种新的思路和方法。Pumping test is a conventional method to obtain local hydrogeological parameters.Based on the field pump⁃ing test of Nafeng trunk line of Guangxi Water Resources Allocation Project around Beibu Gulf,a porous pumping topological pipe network model was established,and the SQP optimization method was applied to the inversion cal⁃culation of permeability coefficient.Finally,the permeability coefficients of confined aquifer in parallel fault direc⁃tion and vertical fault direction in the project area were obtained.Compared with the measured data,the inversion effect is good.The anisotropic permeability coefficient can be obtained by this method,which provides a new idea and method for inversion of groundwater parameters in pumping test.

关 键 词：拓扑管网法 抽水试验 渗透系数 反演 SQP 

分 类 号：P641.2[天文地球—地质矿产勘探]