Abstract
Rock materials used in rockfill dam are simulated by material particles with a 5 sides regular pentagon, with different sizes to evaluate the stability of the rock-fill dams. The influence of structural arrangement from particle composition distribution, particle shape, and gravity leads to changes in the friction coefficient between material particles. In this paper, we study the influence of inter-particle friction varying from 0.1 to 0.9 in the deformation model of the rockfill dam. At this time, polygonal particles of the dam body tend to move downstream, causing the height and length of the dam body to be greatly deformed. This displacement affects the foot of the dam in cases where the inter-particle friction is less than 0.3 but is less affected when the friction coefficient is larger. The results of this paper also show the coordination numbers Z in the system’s connectivity, as well as analyze the differences in side-to-side contacts between two particles. The scientific results of this paper are initial studies in applying numerical methods to evaluate the stability of structures using rock materials.
Published Version
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