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分别介绍了3种常用的库岸滑坡涌浪经验估算方法——美国土木工程学会推荐方法、潘家铮方法和水科院经验公式法。针对乐昌峡水库鹅公带古滑坡体滑坡涌浪预测问题,采用3种常用经验估算方法,并构建几何比尺1:150的物理模型,对设计洪水位和正常蓄水位条件下滑坡体不同滑速所产生的涌浪进行计算和测试。通过滑坡入水点对岸山坡涌浪爬高、坝前涌浪爬高和B3测点涌浪高度结果的对比分析,发现3种常用经验估算法计算结果差异较大,其中潘家铮方法与模型试验结果最为接近。通过对计算结果差异的进一步分析,推荐在采用经验估算法进行库岸滑坡涌浪预测时选择潘家铮方法,此外,还解释了物理模型试验中所出现的一些现象,可供库岸滑坡涌浪预测参考。
Three commonly used methods for estimating the surge of bank landslide are introduced respectively: American Society of Civil Engineers Recommended Method, Pan Jiazheng Method and Empirical Formula Method of Water Science Institute. According to the prediction of the surge of landslides in the ancient slope of Erkong belt in Lechangxia Reservoir, three commonly used empirical methods are used to establish the physical model with geometrical scale of 1: 150. The landslide body Surge at different slip rates is calculated and tested. Comparing and analyzing the results of the surging wave climbing height, the surging wave height in front of dam and the surging height of B3 measuring point, it is found that there are significant differences among the three commonly used empirical estimation methods. The results of Panjiazheng method and model test are the most Close to Through the further analysis of the difference of the calculation results, it is recommended to choose Panjiazheng method when using the empirical estimation method for landslide forecast of bank landslide. In addition, some phenomena in the physical model test are also explained, reference.