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Albaba, A., Lambert, S., Kneib, F. et al. (2017). DEM Modeling of a Flexible Barrier Impacted by a Dry Granular Flow. Rock Mechanics & Rock Engineerin, 50, 3029-3048. https://doi.org/10.1007/s00603-017-1286-z

has been cited by the following article:

  • TITLE: Evaluation of the Impact Force of Dry Granular Flow onto Rock Shed

    AUTHORS: Chun Liu, Zhixiang Yu, Junfei Huang

    KEYWORDS: Coupled DEM-FEM Method, Dry Granular Flow, Rock Shed, Impact Force, Sensitivity Analysis, Numerical Simulation

    JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.7 No.5, May 17, 2019

    ABSTRACT: In the design of rock sheds for the mitigation of risk due to rapid and long landslides, a crucial role is played by the evaluation of the impact force exerted by the flowing mass on the rock sheds. This paper is focused on the influencing factors of the impact force of dry granular flow onto rock shed and in particular on the evaluation of the maximum impact force. The coupled DEM-FEM model calibrated with small-scale physical experiment is used to simulate the movement of dry granular flow coupled with impact forces on the rock-shed. Based on the numerical results, three key stages were identified of impact process, namely startup streams slippery, impact and pile-up. The maximum impact force increases linearly with bulk density, and the maximum impact force exhibits a power law dependence on the impact height and slop angle respectively. The sensitivities of bulk density, impact height, and slope angle on the maximum impact force are: 1.0, 0.496, and 2.32 respectively in the benchmark model. The parameters with high sensitivity should be given priority in the design of the rock shed. The results obtained from this study are useful for facilitating design of shed against dry granular flow.