水文地质工程地质2026，Vol.53Issue(1)：54-65,12.DOI:10.16030/j.heg.202410024
傍河含水层地下水监测井布设最优试验研究
Optimal experimental design for estimating the groundwater exploitation and hydrogeological parameters of riverbank aquifer
摘要
Abstract
Riverbank aquifers are of great importance for water supply sources,and their groundwater dynamics are strongly influenced by pumping and groundwater-surface water interactions.Designing effective groundwater monitoring networks to estimate the groundwater exploitation and invert hydrogeological parameters is one of the core issues in the assessment of the sustainable utilization of regional groundwater resources.In this study,a surrogate model based on the Kriging method for the numerical groundwater model was established for a homogeneous unconfined riverbank aquifer,and Markov chain Monte Carlo method was used to construct an optimal design of the sequential monitoring network with the expectation of the a priori to a posteriori relative entropy of the parameters as the utility function.It enables the joint inversion of the groundwater exploitation and the hydraulic conductivity of riverbed sediment(Kr)in the riverbank aquifer.The case study demonstrates that the surrogate model based on the Kriging method can effectively replace groundwater numerical models,enhancing computational efficiency.The optimized monitoring scheme method based on the proposed method can adequately capture changes in the flow field of the riverbank aquifer and accurately estimate the groundwater exploitation and the parameter Kr-Comparative analyses between the optimized monitoring strategy and random monitoring strategies indicate that the optimized approach achieves superior accuracy in parameter inversion.Comparisons of many sets of optimal monitoring well placement schemes with different layouts show that areas around pumping wells and near rivers with significant changes in the hydraulic gradient are key areas for the placement of monitoring to effectively estimate the groundwater exploitation and invert the Kr.This study provides scientific support for the design of monitoring well networks in riverbank aquifers and offers valuable insights for groundwater resource evaluation and sustainable management.关键词
傍河含水层/地下水开采量/渗透系数/监测井/序贯优化Key words
riverbank aquifer/groundwater exploitation/hydraulic conductivity/monitoring wells/sequential optimal design分类
天文与地球科学引用本文复制引用
张楠,陈喜,高满,刘墉达,李维卓,孟详博..傍河含水层地下水监测井布设最优试验研究[J].水文地质工程地质,2026,53(1):54-65,12.基金项目
国家自然科学基金重点项目(U21A2004) （U21A2004）
水利部重大科技项目(SKS-2022041) （SKS-2022041）
