| Summary: | 碩士 === 國立中央大學 === 應用地質研究所 === 97 === The hydrostratigrapic profiling tool (HPT) and the pneumatic slug tester (PST) are two state-of-the-art technologies for real-time and in-situ determination available for shallow (less than 30 meters) of K(z), unconsolidated materials of grain size smaller than about 4mm. In Taiwan groundwater monitoring network to obtain hydraulic conductivity information for deep of K. How to effectively and rapidly determine K(z) is an important issue in the design and conduction of aquifer recharge. Because they are attached to the direct-push machine, their application requires no well installation and is relatively rapid. In this study include (1) HPT and PST equipment, limiting and data analysis methods, (2) HPT and PST tests at three sites in Southern Taiwan, collecting the vertical variation of electric conductivity and formation response pressure, and depth-specific hydraulic conductivity; regression analysis of them yields K(z) of the test locations, and (3) a chart for electric conductivity of different unconsolidated materials and grain size by making use of literature data and field data collected in this project, and it provides reference for HPT data analysis. The results of this assessment demonstrate that the HPT and PST can provide high-resolution K estimates.
|
|---|
