Analysis of Calculation Results of Bottom Flow Energy Dissipation in Earth Dam Spillway
This paper analyzes the calculation process and results of the bottom flow energy dissipation of a certain reservoir of Foshan in 2019 and 2020.It adopts two methods,namely spillway design specifications and hydraulic calculation manuals,to review the energy dissipation and erosion prevention of the same project,and to identify the differences and reasons in the calculation results.In order to reduce the economic cost of the reinforcement project for small and medium-sized reservoirs,combined with the current situation of the spillway of the reservoir,it is proposed that the calculation of the pre jump head of the energy dissipator should adopt the segmented sum method of the energy equation considering the head loss along the discharge path.This method is more suitable for actual working conditions and can reduce project implementation costs while ensuring safety.
underflow energy dissipationspillwayenergy dissipation and erosion preventionsafety check
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