马堵山水电站溢流坝消能方式再优化试验研究

Research on Re-optimization Energy Dissipation Means of Madushan Spillway

通过马堵山水电站溢流表孔水工断面模型消能型式优化试验表明,采用矩型宽尾墩+挑流的联合消能方式可以有效地消杀下泄水流的巨大能量,大坝下游河床冲坑深度明显减小,整体试验表明该消能方式能够有效地减小下游河道两岸回流范围和强度,为设计提供了科学依据。

Through the overflow spillway of the Madushan Hydroelectric Power Station hydraulic cross-section model optimization of energy dissipation testing pattern obtained, the use of rectangular flaring pier and ski-jump of joint dissipation method can be efficiently discharged water disinfectants for the tremen- dous energy, the dam downstream river bed significantly reduced the depth of scour hole, the overall tests showed that the energy dissipation method can effectively reduce the downstream section of the two sides return to the scope and intensity, in order to provide the scientific basis for the design.