Abstract: The geological environment of high and steep bank slope is complex , the scale diversity is large. The changes of water level in channel river, erosion of water body and long-term infiltration of water body are easy to cause large deformation of bank slope, decrease of stability and even collapse. The high-speed impact of the landslide into the reservoir area will affect the hydraulic structure, passing ships and land buildings to a certain extent, even over the dam body, resulting in dam collapse. By means of single factor physical model orthogonal test, the ultrasonic wave collector was independently developed and designed to analyze the characteristics of landslide initial surge, to investigate the nonlinear effect of landslide-induced wave and bank slope, and to study its propagation and development law. The research shows that the peak and trough of landslide-induced wave are steep and the wave axis is asymmetric up and down; the larger width of landslide mass, the more sufficient energy exchange between landslide body and water is in the process of sliding; the smaller the energy loss of landslide mass sliding, the higher the height of landslide surge is; the thicker the landslide mass, the larger the volume of landslide mass is; the larger the energy of landslide mass sliding, the higher the height of landslide surge is. The research results can provide some guidance for water conservancy project construction and flood control planning.

Key words: port engineering, curved river channel, landslide-induced wave, propagation characteristics, experimental study

摘要： 高陡岸坡的地质环境复杂，规模差异大，库水位变动、水体侵蚀及水体长期侵润，都容易使岸坡发生大变形，稳定性降低，进而发生垮塌，滑坡体高速冲入库区，会对水工结构、过往船只及陆地建筑造成一定范围的影响，甚至翻越坝体，造成坝体溃决。以单因子物理模型正交试验为手段，自主研发设计了超声波浪采集器，分析了滑坡初始涌浪特征，考察滑坡涌浪与岸坡的非线性作用，研究其传播及发展规律，研究表明：滑坡涌浪的波峰及波谷较陡，波轴线上下不对称，滑坡体宽度越大，滑坡体下滑过程中与水体的能量交换越充分，滑坡体下滑的能量损失越小，滑坡涌浪的高度越大，滑坡体厚度越大，滑坡体体积越大，滑坡体下滑的能量越大，滑坡涌浪的高度越大。该研究成果可为水利工程建设、防洪规划提供一定指导意见。

关键词: 港口工程, 弯曲河道, 滑坡涌浪, 传播特性, 试验研究