Numerical model of the simulation for the flooding patterns of Zhiben river and Lijia river

• Main Authors: Yih-Chou Lin, 林奕舟
• Other Authors: I-Chen Lin
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/31415709287715508097

碩士 === 淡江大學 === 水資源及環境工程學系碩士班 === 98 === Zhiben river and Lijia river are the easy flooding area in Taitung county, and human living area overlaps with flood plain. By using numerical models to simulate the flow conditions, we may be effectively able to understand flooding situation. In this research satellite images will first be digitized.FLO-2D and HEC-RAS will be used to simulate the flow conditions during typhoon period. HEC-RAS is also used to analyze flood situation with the implementation of two different methods which are raising the elevation of river''s bank and dredging to improve the flooding situation. The analyzed results showed that because of the different characteristics of each river basin, the improved methods are different. In order to have more accurate simulated results, it is necessary to have more accurate geographic information like landuse and manmade hydraulic structures and pump-station information within the river''s flooding plan.