ABSTRACT
Taking fluid and soil mechanics as the theoretical basis, this paper analyzes the mechanism of soil erosion based on mechanics. Fluid flow applies a shearing force to the soil surface, while the soil has a resisting structural force. Most erosion research studies only consider the forces in erosion-striking force by raindrops, shearing force by runoff, soil structure force, driving force by runoff and frictional force by loose soil grains. When the striking force and shearing force exceed the limiting value of the soil structure force, soil structure will be destroyed, and soil erosion will occur. The soil erosion mechanics analysis is an effective and direct method to study soil erosion mechanisms and has important theoretical and practical significance for studying and controlling soil erosion.
