两条轴线平行布置的泄洪洞出口联合消能工布置形式研究OACSTPCD

Two flood discharge and sediment discharge tunnels of the lower reservoir of Zhirui Pumped-storage Power Station are arranged with parallel axes.As the problem of poor energy dissipation effect of the common stilling basin at the outlets of two tunnels in the original design scheme,the single normal hydraulic model is selected,and the hydraulic model tests are carried out based on hydraulic similarity criterion to study the layout of outlet energy dissipator.The test data show that the final recommended scheme can effectively improve the energy dissipation efficiency,improve the flow pattern,optimize the design scheme and achieve the purpose of reducing the project investment,and effectively solve the problem of joint energy dissipation at the outlets of the spillway tunnels with parallel axes.