Study For Operation Plan And Limiting Stage During Flood Determination Of Chaersen Reservoir

Limiting stage during flood is a very important and sensitive index for the reservation operation. Based on flood control duty, active requirement, project status, capacity releasing flood, the flood damage for upstream, Limiting stage during flood can be determined. For many years reservoir, the task and effort are very different with that of the initial design. So Limiting stage during flood of the reservoir should be adjusted again. According to the actual condition of Chaersen reservoir, this paper mainly studies the methods determining and controlling dynamically Limiting stage during flood. It also researches how to relieve the contradiction between flood control and benefit, and how to make use of flood resource by new thoughts and contents. The main content is as following.1. Based on the present dispatch procedure of Chaersen reservoir, multi-year regulated hydrographic series is calculated. The seasonal character happening rainstorm is studied. The potential boosting Limiting stage during flood is analyzed by checking design flood and studying interval and substage flood.2. According to the project's practical operation, the main parameters related reservoir operation are determined. The feasibility increasing Limiting stage during flood is demonstrated based on the operation and function of the reservoir.3. Using the results of hydrology check, the present dispatch procedure and existing problem are analyzed. Based on the case of longer time of post flood period and uncertainty of Limiting stage during flood, this paper puts forward the method of implement substage Limiting stage during flood. The rationality of the present dispatch procedure is qualified by the analysis of process of practical flood discharge. Associated with status of downstream flood control and flood-carrying capacity of river, this study establishes a new flood dispatch procedure.4. For the Limiting stage during flood program, this paper makes adjust calculation of flood control. According to the evaluation result, the program's feasibility and rationality are analyzed comprehensively.