Simple method for quick estimation of aquifer hydrogeological parameters

3rd International Conference on Water Resource and Environment

地球科学;生态环境科学

Ma, C.^1,2 ; Li, Y.Y.^3,4

Powerchina Guiyang Engineering Corporation Limited, Guiyang

550081, China^1

Hydrochina Guiyang Engineering Corporation Geotechnical Engineering Company Limited, Guiyang

550081, China^2

School of Environmental Science and Engineering, Chang'An University, Xi'an, Shanxi Province

710054, China^3

Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region, Ministry of Education, Chang'An University, Xi'an, Shanxi Province

710054, China^4

关键词: Aquifer parameters;    Fitting functions;    Groundwater resources assessments;    Hydrogeological parameters;    Linear regression equation;    Optimization method;    Regression equation;    Statistics and analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/82/1/012023/pdf
DOI  :  10.1088/1755-1315/82/1/012023

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Development of simple and accurate methods to determine the aquifer hydrogeological parameters was of importance for groundwater resources assessment and management. Aiming at the present issue of estimating aquifer parameters based on some data of the unsteady pumping test, a fitting function of Theis well function was proposed using fitting optimization method and then a unitary linear regression equation was established. The aquifer parameters could be obtained by solving coefficients of the regression equation. The application of the proposed method was illustrated, using two published data sets. By the error statistics and analysis on the pumping drawdown, it showed that the method proposed in this paper yielded quick and accurate estimates of the aquifer parameters. The proposed method could reliably identify the aquifer parameters from long distance observed drawdowns and early drawdowns. It was hoped that the proposed method in this paper would be helpful for practicing hydrogeologists and hydrologists.