Abstract
Based on field surveys the geological condition was obtained on the Kangjia landslide that occurred in China’s Wenxian County. The dynamic motion of the landslide was analysised and simulated using the DAN-W software. The impact of numerical simulation of landslides was considered in terms of their erosion effects and rheological characteristics. It is found that the landslide deposit forms were similar despite different erosion depths and stacking thickness along when the erosion depth increased and the running time decreased. The maximum movement distance was estimated at 193.92 m using a frictional–Voellmy model. The maximum thickness was 7.6 m, the maximum velocity of the leading edge was 24.5 m/s, and the longest movement time was 19 s. The most suitable rheological parameters to simulate this landslide were a friction angle φ of 37°, a friction coefficient μ of 0.16, and a turbulence coefficient ξ of 800 m/s2.
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