| Summary: | 碩士 === 國立臺灣大學 === 土木工程學研究所 === 99 === The purpose of this study is to establish a method for Combining with signal analysis techniques and numerical groundwater model for the identification of local pumping source s and estimate the amount of its pumping .The method of this study is applied to pumping estimation at Hsichou of Jhuoshuei river alluvial fan.This study use ICA to identify the pumping source from observed groundwater level and estimate the amount of pumping source. By model simulations, set pumping wells in the effective diameter of local observation wells and estimate the local pumping to fit the level of pumping amplitude.
The method of this study is applied to pumping estimation at Hsichou of Jhuoshuei river alluvial fan .The amount of local pumping at Hsichou(1) shows 4457 ton/day of agricultural pumping and with 7.96cm drawdown, 1730 ton/day of charge-saving pumping A and with 3.09cm drawdown, 2861 ton/day of charge-saving pumping B and with 5.11cm drawdown；The amount of local pumping at Hsichou(2) shows 3698 ton/day of agricultural pumping and with 4.02cm drawdown, 1730 ton/day of charge-saving pumping A and with 3.09cm drawdown, 2971 ton/day of charge-saving pumping B and with 3.23cm drawdown；The amount of local pumping at Hsichou(3) shows 9006 ton/day of agricultural pumping and with 9.79cm drawdown, 1766 ton/day of charge-saving pumping A and with 1.92cm drawdown, 2888 ton/day of charge-saving pumping B and with 3.14cm drawdown.
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