环形溢洪道的试验研究

Test Research of Ring Spillway

根据有关设计规范及已建工程运行经验对环形溢洪道的进流流速及流速分布都有严格的限制。结合贯城河排污分洪隧洞工程 ,在来流流速较大 (最大流速 8m/s)且流速分布不均匀 (流速差 4m/s)的水力条件下 ,对隧洞进口射流跌入消能的环形溢洪道进行了试验研究 。

According to design standards and operation experience in built hydropower station,the flow speed and its distribution in ring spillway are close confinement.In tunnel engineering for sewage drain and flood diversion of the Guancheng River,the speed of the flow run into the tunnel is high (maximum one is 8 m/s),and the speed distribution is non-uniform (maximum speed difference is 4 m/s). Under the hydraulic conditions,test research that flow run into the dissipating ring spillway of tunnel intake was conduced. On the test base,simlpe,feasible equipment for anti-eddy was presented.