DOI: 10.1007/s11069-020-04457-z
论文题名: The study of rockfall trajectory and kinetic energy distribution based on numerical simulations
作者: He Y. ; Nie L. ; Lv Y. ; Wang H. ; Jiang S. ; Zhao X.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 106, 期: 1 起始页码: 213
结束页码: 233
语种: 英语
中文关键词: Energy distribution
; Movement trajectory
; Numerical simulation
; Risk governance
; Rockfall
英文关键词: computer simulation
; kinetic energy
; rockfall
; slope
; China
; Dalian
; Liaoning
; Yuanyang
; Yunnan
英文摘要: Rockfall trajectory and kinetic energy distribution are the main components of rockfall research. In many cases, limited by site conditions, field experiments cannot be conducted adequately, so numerical simulation is necessary. This paper investigates the rockfall hazard on a slope in Yuanyang city, Dalian, China. Field experiments, ROCFALL software simulation and a secondary development simulation based on the discrete element method (DEM) were used to obtain the kinetic characteristics of ten rock blocks on four profiles. Comparing the results of two simulation methods with the field experiments shows that the DEM simulation is more accurate and comprehensive. According to the simulated trajectory and kinetic energy distribution of rockfalls, the area influenced by rockfalls is obtained, and a flexible barrier is selected as the protection measure. Therefore, DEM simulation is an effective means to study rockfall movement and can serve as the basis for the design of safety engineering. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169070
Appears in Collections: 气候变化与战略
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作者单位: Construction Engineering College, Jilin University, Xi Min Zhu Street, Changchun, Jilin 130026, China
Recommended Citation:
He Y.,Nie L.,Lv Y.,et al. The study of rockfall trajectory and kinetic energy distribution based on numerical simulations[J]. Natural Hazards,2021-01-01,106(1)