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In this work, a two-layer depth-integrated smoothed particle hydrodynamics (SPH) model is applied to investigate the effects of landslide propagation on the impulsive waves generated when entering a water body. In order to deal with the open boundary in practical engineering problems, an absorbing boundary method, based on Riemann invariants which can be applied to arbitrary geometries, is implemented. In order to examine the accuracy of the proposed formulation, the model is tested against both available laboratory tests and numerical examples from the literature. Then, it is adopted to model the characteristics of the impulse waves generated by the Halaowo landslide in the Jinsha River, China. The results provide a technical basis for the emergency plan to the Halaowo landslide and benefit the disaster prevention policy, which helps mitigating future hazards in similar reservoir areas.
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; Liu, Xiaoqing 3 ; Qi Huijun 3 ; Lin Chaoning 3 1 Fuzhou University, College of Civil Engineering, Fuzhou, China (GRID:grid.411604.6) (ISNI:0000 0001 0130 6528); Hohai University, College of Water Conservancy and Hydropower Engineering, Nanjing, China (GRID:grid.257065.3) (ISNI:0000 0004 1760 3465)
2 Universidad Politécnica de Madrid, Department of Applied Mathematics, ETSI Caminos, Madrid, Spain (GRID:grid.5690.a) (ISNI:0000 0001 2151 2978)
3 Hohai University, College of Water Conservancy and Hydropower Engineering, Nanjing, China (GRID:grid.257065.3) (ISNI:0000 0004 1760 3465)