Effects of Inter-Particle Frictional Coefficients on Evolution of Contact Networks in Landslide Process
？and N-cycle, were done during the process？of landslide. The analysis results demonstrate that: 1) with increasing inter-particle？frictional coefficients, the displacement of slope decreases and the stable angle of slope post-failure increases, which is smaller than the peak internal frictional angle; 2) the average degree decreases with the increase of inter-particle frictional coefficient. When the displacement at the toe of the slope is smaller,？the average degree there changes more greatly with increasing inter-particle？frictional coefficient; 3) during the initial stage of landslide, the clustering coefficient？reduces sharply, which may leads to easily slide of slope. As the landslide？going？on, however, the clustering coefficient？increases denoting increasing stability？with？increasing inter-particle frictional coefficients. When the inter-particle？frictional coefficient is smaller than 0.3, its variation can affect the clustering coefficient？and stable inclination of slope post-failure greatly; and 4) the number of？3-cycle increases, but 4-cycle and 5-cycle decrease with increasing inter-particle frictional coefficients.