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A STUdY ON THE EQUILIBRIUM PROFILE FOR THE LUOSHAN-HANKOU REACH IN THE MIddLE YANGTZE RIVER

International Journal of Sediment Research 2003年第2期18卷 107-114页

作者： Jinyun dENG ,Yitian LI Wuhan University Key Lab of Water and Sediment Sciences Ministry of Education 430072 Wuhan

Based on the morphology of the Luoshan-Hankou reach in the middle Yangtze River, the one dimensional (1-d), unsteady flow and sediment transport model was applied to study the river channel equilibrium profile. Meanwhile, a simple theoretical model relating the equilibrium profile and the incoming flow and sediment from the upper reach was developed. The numerical simulation results of the 1-d model were compared with the corresponding results of the theoretical model with reasonable agreement found between the two models. Finally, the equilibrium slope variations and their effects on flood control in response to the changes in the sediment transport process because of the Three Gorges Reservoir were analyzed using the 1-d model.

关键词： Equilibrium profile Incoming flow and sediment Slope Flood level 1-d mathematical model

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LONG-TERM EFFECTS OF THE GEZHOUBA PROJECT ON FLOOd PROPAGATION IN THE YANGTZE RIVER

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International Journal of Sediment Research 2001年第2期16卷 315-319页

作者： Yaohua dONG 1and Ruilan YIN2 1 Senior engineer ,Yangtze River Scientific Research Institute (YRSRd, Wuhan 430010, P.R.China. 2 Professor-senior engineer, Yangtze River Scientific Research Institute (YRSRI). Yangtze River Scientific Research Institute YRSRI Wuhan 430010 P.R.China Yangtze River Scientific Research Institute YRSRI.

Based on hydrographs of "81.7"flood and topographies of 1980 and 1993, a 1-d mathematical model of flood is developed to study the effects of the Gezhouba Project on flood propagation along the Yichang-Jianli river reaches in the Yangtze River. Calculations and analysis show that, after 13 years’ operation of the Gezhouba Project, the flood peak stages have been lowered, the flood curves of stage-discharge relationship have been moved, however, the effects on the flood discharges and storages can be neglected relatively.

关键词： Flood propagation The Gezhouba Project 1-d mathematical model "81.7" flood

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