Experimental study on the effect of bridge piers introduced by landslide-generated waves

Landslide surge is very harmful to wading structures. In this paper, it is found that the wave pressure on the pier can be classified into two types: impact pressure and pulsating pressure. The impact wave energy mainly gathers in the main wave direction. The distribution law of impact pressure along the water depth is divided into three types: single-peak, multi-peak, and no-peak. The impact pressure only exists in the main wave direction, and only exists in the opposite pier. The impact pressure increases first and then decreases along the water depth, the impact pressure in the middle of the pier is the largest. The pulsating pressure can be approximately regarded as a uniform load distribution along the water depth under certain water depth conditions. The maximum wave pressure is located in the middle from the bottom of the pier to the water surface. The calculation formula of the maximum hydrodynamic pressure is given for engineering reference.