关键词: 防洪;实时补偿调度;水动力学模型;城陵矶地区;三峡水库;

Abstract: The Chenglingji area has always been the focus of flood control in the Changjing River Basin,as well as an important target of flood control for reservoir group in the upper and middle reaches of the Changjing River. In this paper,a hydrodynamic model for the Changjing River Basin and Dongting Lake area was constructed to simulate and analyze the operation effects of the Three Gorges Reservoir on the Chenglingji reach under various typical floods and different operation modes. Following the results,the real-time compensation operation mode of the Three Gorges Reservoir was proposed for the Chenglingji reach. The results showed that considering the effect of compensation operation and the uncertainty of hydrometeorological forecasts,if the water level of the Chenglingji(Lianhuatang Station) would reach or exceed the target control level at the forecast time,it was appropriate to restrict the discharges of the Three Gorges Reservoir 4 ～ 5 days in advance,and gradually adjusted the discharges according to hydrometeorological forecasts.

Key words: flood control;?real-time compensation operation;?hydrodynamic model;?Chenglingji area;?Three Gorges Reservoir;