关于水工模型优化溢洪道设计方法分析

Analysis on Design Method of Optimized Spillway for Hydraulic Model

对溢洪道原设计方案按1∶40建立水工模型,对水库不同运行工况下溢洪道泄流能力、泄槽流态及消力池消能效果进行水工模型试验。水工试验通过试验-修改-试验等过程和反复探索,优化枢纽布置、建筑物型式和有关设计参数,为设计最终优化方案提供可行、可靠的依据。通过水工模型试验成果对原设计方案进行局部优化,较好地解决溢洪道泄流能力不足、泄槽流态波动大及消能效果不佳等问题。

In this paper,a hydraulic model is established for the original design scheme of spillway according to 1:40,and a hydraulic model test is carried out for the discharge capacity,flow pattern of spillway and energy dissipation effect of stilling basin under different operating conditions of reservoir.Hydraulic test optimizes the layout of complex,building type and relevant design parameters through test-modification-test and repeated exploration,which provides feasible and reliable basis for the final optimization design.Through the results of hydraulic model test,the original design scheme was optimized locally to solve the problems of insufficient discharge capacity of spillway,large fluctuation of flow pattern of discharge channel and poor energy dissipation effect.