水垫塘底板稳定性控制指标的探讨

Study on control factors of stability for plunge pool slabs

基于几个高坝水垫塘底板水力模型试验研究,对稳定性控制指标进行了探讨。从脉动压强、上举力和冲击压强之间关系的角度,得出了冲击压强所表示水动力荷载的量化指标。文中所述成果可用以评价类似工程的底板稳定性并作为设计依据。

The control factors of stability for plunge pool slabs are analyzed according to the model test results of several high dams. A quantitative index expressing the dynamic forces acting on the slabs is deduced based on the relationship between fluctuating flow pressure and impact force and the relationship between fluctuating flow pressure and uplift force. The suggested index can be used as the criteria for assessing the stability of slabs.