Research on utilization of rain-flood resources with the operation of multi-stage sluices in Tuhai River Basin
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Abstract:
The lack of water and the imbalance between supply and demand of water resources are both serious problems in Tuhai River Basin. However, in this basin, rainfall in the flood season is abundant, and the storage and detention engineering is excellent. Therefore, we put forward an idea to improve the utilization of rain-flood resources by properly operating the multi-stage sluices on the main channel to relieve the contradiction between supply and demand. We used MIKE11 software to establish a simulation model on rain-flood resources, coupled the hydrodynamic model (HD) and rainfall runoff model (NAM), and designed three operation modes: full-open gate, water level control, and water level difference control. We used these three modes to simulate the rain and flood process in typical working conditions. Based on the results of simulation, we carried out quantitative analysis of water regulation using the water quantity regulation calculation method. The results showed that the operation of the sluices can improve the utilization of rain-flood resources and solve the water resources crisis better.
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