关键词: 港口工程, 弯曲河道, 滑坡涌浪, 传播特性, 试验研究

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