山区河道型水库滑坡涌浪的计算研究

On Calculation of the Landslide Surge of the River-channel Type Reservoir in Mountainous Area

在弄清水库滑坡发生的成因及涌浪大小影响因素的基础上,根据固流能量交换原理,选择典型山区河道型水库———三峡水库为依托进行水槽概化模型试验,采用多元线性回归方法,得到滑坡坡度、固流有效接触面积、富裕水深3因素与相对初始涌浪高之间的关系以及沿程分别距滑坡入水点2,4 m远涌浪高与初始涌浪的关系,将拟合的经验公式计算值与试验所测值进行误差分析,结果表明:拟合的经验公式具有一定的可靠性。

Based on comprehension of the causes of the reservoir landslides and influence factors of the surge size and principles of solid flow energy exchange,the conceptual model test by the water flume was carried out in a typical mountain river reservoir-the Three Gorges Reservoir.The multiple linear regression method was adopted to obtain the relationship among three factors,the landslide slope,the effective contact area between solid and flow,the rich water depth of the relative initial-surge,the relative initial-surge height,and the relationship between the initial surge height and the progressive surge height.Besides,the error analysis was conducted between the calculated values by the fitted empirical formula and the measured values in the test.The results showed that the fitted empirical formula was reliable.