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The study of rockfall trajectory and kinetic energy distribution based on numerical simulations

Author

Listed:
  • Yuanyuan He

    (Construction Engineering College, Jilin University)

  • Lei Nie

    (Construction Engineering College, Jilin University)

  • Yan Lv

    (Construction Engineering College, Jilin University)

  • Hong Wang

    (Construction Engineering College, Jilin University)

  • Senfeng Jiang

    (Construction Engineering College, Jilin University)

  • Xiaohan Zhao

    (Construction Engineering College, Jilin University)

Abstract

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.

Suggested Citation

  • Yuanyuan He & Lei Nie & Yan Lv & Hong Wang & Senfeng Jiang & Xiaohan Zhao, 2021. "The study of rockfall trajectory and kinetic energy distribution based on numerical simulations," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 106(1), pages 213-233, March.
    • Handle: RePEc:spr:nathaz:v:106:y:2021:i:1:d:10.1007_s11069-020-04457-z
    DOI: 10.1007/s11069-020-04457-z
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    Cited by:

    1. Ziwei Ge & Hongyan Liu, 2023. "Numerical investigation on the dynamic response of rockfall impacts on flexible barrier under seismic loading," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 115(2), pages 1213-1234, January.
    2. Aikaterini Servou & Nikolaos Vagenas & Nikolaos Depountis & Zafeiria Roumelioti & Efthimios Sokos & Nikolaos Sabatakakis, 2023. "Rockfall Intensity under Seismic and Aseismic Conditions: The Case of Lefkada Island, Greece," Land, MDPI, vol. 12(1), pages 1-23, January.
    3. Zhao, Pengxiang & Zhuo, Risheng & Li, Shugang & Lin, Haifei & Shu, Chi-Min & Shuang, Haiqing & Wei, Zongyong, 2023. "Greenhouse gas protection and control based upon the evolution of overburden fractures under coal mining: A review of methods, influencing factors, and techniques," Energy, Elsevier, vol. 284(C).

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