THE AUTO-MONITORING AND SIMULATION OF DYKE BREAK IN THE RIVER NETWORKS
This study embedded an auto-searching technique and hydraulic formula for computing the flow over a notch-like or trapezoidal weir into a numerical model, which simulated flow in river networks only, in order to simulate the dyke break process. The model was applied to an incident occurred in the river networks of Shanghai area. During that incident, the dykes along the rivers in certain part of the river networks were broken due to overtopping induced by tidal influence and water level rising caused by large amount of storm runoff. The results showed that the dyke break process was rationally simulated. The accuracy of water level simulation is in the range of 0.04～0.09m, and the accuracy of discharge simulation is 8%～24%. The model can be used in prediction of the possible dyke break and estimation of the possible consequence in complicated river networks.
river networks dyke break numerical model auto-monitoring
Yu Dai Deguan Wang Jie Han Yingyan Du
Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Edu College of Environmental Science and Engineering, Hohai University, 1 Xikang Road, Nanjing 210098,Ch Shanghai Hydrological General Station, 241 Longhua West Road, Shanghai 200232, China
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
1778-1783
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）