雁田水库溢洪道消力池的优化设计研究

Study on Optimization Design of Energy Dissipator of the Spillway in Yantian Reservoir

本文根据雁田水库溢洪道的水力要素对消力池等消能工进行了复核,复核结果显示:在50年一遇设计洪水标准下,现状消力池长度略显不足。为此,在消力池内增设消能墩等辅助消能设施,能有效提高消能效率,缩短消力池的长度。增设消能墩后消力池计算长度为20.1m,现状消力池满足在池内形成淹没式水跃的要求。该工程的实施及运用为类似工程消力池的改造设计提供了参考。

This paper reviews the energy dissipator based on the the hydraulic factors of the spillway of yantian reservoir.The results show that under the criterion of 50-year once-in-a-flood,the length of the current stilling basin is slightly insufficient.In order to reduce the length requirement of the stilling basin, some auxiliary energy dissipation facilities,such as energy dissipation piers,are added to improve the energy dissipation efficiency.After adding the energy dissipation piers,the calculated length of the stilling basin is 20.1 m,and the current length of the stilling basin meets the requirements of forming submerged hydraulic jump in the pool.The application of the engineering measures provides a reference for the reconstruction design of similar projects.