库岸滑坡涌浪首浪高度计算方法研究

发布时间：2018-06-05 05:41

本文选题：滑坡涌浪 + 首浪　；参考：《人民长江》2017年18期

【摘要】：库岸滑坡涌浪不仅威胁航行船只的安全,还可能冲毁库区内的水工建筑物,有必要对其展开系统研究。而确定涌浪首浪高度是研究库岸滑坡涌浪的首要问题。通过对影响首浪相对高度因素的无量纲化处理,获知滑坡体入水的相对Froude数、滑坡体的相对高度和滑坡入水角度是影响首浪相对高度的主要因素;同时运用微波的波能理论和机械能守恒理论推导出一项新的首浪高度理论计算式,再利用滑坡涌浪模型试验数据对计算式进行拟合,并考虑计算式的实际运用和推广,最终得到一种计算库岸滑坡涌浪首浪高度的新方法。可为库区滑坡涌浪灾害提供预测基础。
[Abstract]:Landslide surge not only threatens the safety of navigation ships, but also may destroy the hydraulic structures in the reservoir area, so it is necessary to carry out systematic research on it. Determining the height of the first wave is the most important problem in the study of landslide surge along the reservoir bank. Through the dimensionless treatment of the factors affecting the relative height of the first wave, the relative Froude number of the landslide body entering water is obtained. The relative height of the landslide body and the angle of the landslide entering water are the main factors affecting the relative height of the first wave. At the same time, using microwave wave energy theory and mechanical energy conservation theory, a new formula for calculating the first wave height is derived, and then the formula is fitted by the landslide surge model test data, and the practical application and popularization of the calculation formula are considered. Finally, a new method for calculating the height of the first wave of landslide surge on the bank of the reservoir is obtained. It can provide prediction basis for landslide surge disaster in reservoir area.
【作者单位】：浙江省水利河口研究院;四川大学水力学与山区河流开发保护国家重点实验室;
【基金】：国家青年科学基金项目(51609214) 2017年浙江省科研院所扶持经费项目(2017F10009)
【分类号】：P642.2

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