With the increasing frequency of extreme events around the world, ice avalanche debris flow has become one of the major hazards threatening high altitude areas. In this paper, the study of this kind of disasters is carried out, the technical means of disaster research and the mechanism of disaster are analyzed, and the numerical simulation inversion of typical disasters is carried out. The conclusions are as follows: (1) At present, multi-source remote sensing images, DEM, seismic records and meteorological data are mainly used for analysis, which reveals that precipitation, temperature and seismic activity are the main factors of disaster; (2) Numerical simulation and large-scale laboratory experiments, as the main means, are used to analyze the mechanism of debris flow, revealing the physical and mechanical mechanism of ice-rock mixture in the disaster-causing process; (3) It is a developing trend to use discrete element numerical simulation to study the movement process of ice avalanche debris flow and the process of disaster chain caused by it; (4) The use of PFC numerical simulation software to study the typical ice-rock collapse debris flow disasters in Sedongpugou is of applicable value.

Duoji Renqing, Jiawei Liu, Maojun Yang, Chenjie Jiang, Wenjie Huang, Pengju Xiao. Review of the numerical simulation study on glacial/rock fall-avalanches. Academic Journal of Environment & Earth Science (2024), Vol. 6, Issue 5: 82-88. https://doi.org/10.25236/AJEE.2024.060511.

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