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库岸滑坡涌浪经验估算方法对比分析 被引量:26

Comparative analysis of empirical estimate methods of reservoir bank landslide surge
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摘要 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 common empirical estimate-methods of reservoir bank landslide surge are introduced. They are American Society of Civil Engineers recommended method, PAN Jia-zheng method and IWHR empirical formula method. For the landslide surge prediction of Egongdai ancient landslide in Lechangxia Reservoir, three common empirical estimate-methods were adopted and a physical model with geometric scale of 1:150 is constructed. Surge generated by different sliding velocity are calculated and tested under the design flood level and normal water conditions. By comparing the results of surge height of hillside on the opposite bank of the point of water entry of landslide, dam location and B3 measuring point, it is shown that the calculation results of three common empirical estimate-methods are quite different; and the results of Pan Jia-zheng method agree with the test results best. Through the further analysis of the differences between calculated results of three common empirical estimate-methods, PAN Jia-zheng method is recommended when using the empirical estimate-methods to predict reservoir bank landslide surge. In addition, some phenomena appeared in the physical model test are also explained. The method recommended can be available for landslide surge prediction.
出处 《岩土力学》 EI CAS CSCD 北大核心 2014年第S1期133-140,共8页 Rock and Soil Mechanics
基金 广东省水利科技创新基金资助(No.2009-36)
关键词 库岸滑坡涌浪 经验估算方法 物理模型试验 成果对比分析 乐昌峡水库 鹅公带古滑坡体 reservoir bank landslide surge empirical estimate-method physical model test comparison and analysis of the results Lechangxia reservoir Egongdai ancient landslide
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