Abstract
Large-scale instability of a landslide body, sliding down a bank slope and entering water at a high speed, arouses landslide surges. Taking the water entry point as a source point, they spread rapidly to surrounding areas, increasing the danger risk of vessel passages in the water area. In this paper, adopting an orthogonal experimental design method, based on the test data, the Three Gorges Reservoir area was derived in order to calculate the height of the first wave of the bank landslide surge: to analyze the slope angle, the geological environment, the volume of the landslide surge, and the landslide surge wave steepness; to study the landslide volume effect on ship rolling and the swaying motion rule; and to explore the landslide surge in different ship rolling positions and transverse oscillation characteristics. This study can provide theoretical support for the navigation safety of ships in landslide surge waters.
Highlights
The Three Gorges Reservoir area along the Yangtze river is located in the Sichuan basin and the middle-lower Yangtze plain area
Based on an orthogonal test with a physical model of a landslide-induced surge, we studied the characteristics of the height of the first wave and the steepness of the wave, and discuss here the influence of landslide surges on ship roll and heave
When a ship is sailing in a landslide surge water area, only the rolling motion and the swaying motion needs to be considered for navigation safety
Summary
The Three Gorges Reservoir area along the Yangtze river is located in the Sichuan basin and the middle-lower Yangtze plain area. Many studies have been conducted on landslide-induced surge physical model experiments, ship nonlinear motion, and wave steepness characteristics. Through orthogonal experiments with physical models, scholars have studied the wave parameters, propagation law, attenuation coefficient, and other parameters of landslide-induced surges, Huang [4], Wang [5], and Aaron [6] focused on shallow water, complex topography, and non-hydrostatic separately. The 3D experiment trails were conducted in a 2.1 m long, 2.0 m wide, and 0.2–0.4 deep basin Some experts, such as Lan Kang [12], Sakakibara [13], and John Grue [14], have studied the movement of ships on the earthquake-induced tsunami flow by writing programs and model tests. The research results can provide a theoretical reference for the rational division of waterway warning areas and further improve the navigation safety of ships
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have