| Summary: | 碩士 === 國立屏東科技大學 === 土木工程系所 === 100 === This study used Physiographic Drainage-Inundation model to simulate the inundation editions for 2 year, 5 year, 10 year, 25 year, 50 year,100 year, and 200 year return periods, for the downstream area at Linbian River Basin.
The inundation potential, inundation volume and disaster loss evaluation of the research area are studied. Based on the results of the simulation and the curve of inundation Depth- Loss that the unit inundation loss under different return periods were estimated.
In this study, three cases are analyzed, the first case detention pond located at downstream of Qiang-Yuan Drainage, the second case detention pond located at upstream of Qiang-Yuan Drainage and upstream of Wen-Tzu Drainage, and the last case detention pond located at dowstream of Qiang-Yuan Drainage and middlestream of Wen-Tzu Drainage. The final results showed the reduction rate of the monetary loss caused by storm events for different return periods are found to be most significant in case 3. This indicates that in addition to considering reduction in the flooded volume, the detention pond should be installed at the area with higher economic production values so that the monetary loss due to inundation can be diminished.
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