[A-GE28] Energy-Environment-Water Nexus and Sustainable Development

[AGE28-07] Sensitivity Analysis and Research between Hydraulic Properties and Changes of Hydraulic Parameters during the Pumping Test

*JEN-TSUNG KUO¹, Jet-Chau Wen^2,3 (1.National Yunlin University of Science and Technology, 2.Professor of Safety Health and Environmental Engineering, National Yunlin University of Science and Technology, 3.Research Center for Soil and Water Resources and Natural Disaster Prevention (SWAN), National Yunlin University of Science and Technology)

Keywords:Sensitivity Analysis, pumping test, Hydrogeological parameters

Sensitivity analysis occupies an important place in any hydrological modeling exercise. In this study we will conduct pumping test in a heterogeneous aquifer with controlled ambient and pumping conditions. Then conduct sensitivity analysis within the influence range of this pumping test and establish an effective sensitivity map, The sensitivity intensity mainly depends on the change of water level drawdown and the specific hydraulic parameters involved in the test, In this way, we can understand the sensitivity influence of each parameter in the test, and establish a perfect pumping test based on this experience.
First, we will use the analytical solution of the sensitivity equation to analyze the sensitivity coefficient. Afterwards, the hydrological calculation software VSAFT2 was used to carry out the modeling analysis of the model to obtain information such as the drawdown of the modeling field and the sensitivity map of hydraulic parameters, and compare the rationality. And extending the results of this study to the three-dimensional space field, it is possible to understand more clearly the direct correlation between the sensitivity impact and the test site during the time, so as to use the characteristics of the three-dimensional space concept to confirm various information and extend the discussion of the source. This will have a great contribution to the changes of water bodies in the future analysis area, groundwater recharge patterns and diffusion control of underground pollution.