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Simulation study of the rupture mechanism of through-cracking under freeze–thaw load coupling effect

Author

Listed:
  • Ying Xu

    (Anhui University of Science and Technology
    Anhui University of Science and Technology)

  • Zhongwen Wang

    (Anhui University of Science and Technology)

  • Meilu Yu

    (Anhui University of Science and Technology)

  • Haotian Xie

    (Anhui University of Science and Technology)

  • Yanghaonan Jiao

    (Anhui University of Science and Technology)

  • Qi An

    (Anhui University of Science and Technology)

  • Chengjie Li

    (Anhui University of Science and Technology)

Abstract

Based on the uniaxial compression test, this study examined the effect of the dip angle of the rock formation on crack initiation, propagation, and penetration failure mechanism under the combined effects of freeze–thaw and load, utilizing the discrete element programmed. The results show that: The fracture area of fractured rock mass is mainly caused by fatigue damage caused by stress concentration at the end of fracture. The crack propagation path at the crack tip may be deflected due to the influence of freeze–thaw cycles. With the increase of the dip angle of the rock bridge, the failure mechanism of the rock sample gradually evolved from a single tension failure to a mixed tension-shear failure, and the fractal dimension of the crack increased first and then decreased. When the dip angle of the rock bridge is α

Suggested Citation

  • Ying Xu & Zhongwen Wang & Meilu Yu & Haotian Xie & Yanghaonan Jiao & Qi An & Chengjie Li, 2024. "Simulation study of the rupture mechanism of through-cracking under freeze–thaw load coupling effect," 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. 120(11), pages 9809-9831, September.
    • Handle: RePEc:spr:nathaz:v:120:y:2024:i:11:d:10.1007_s11069-024-06587-0
    DOI: 10.1007/s11069-024-06587-0
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    References listed on IDEAS

    as
    1. Zhenzi Yu & Ang Li & Bo Zhang & Hongyue Li & Qian Mu & Yonggen Zhou & Shuai Gao, 2022. "Particle Flow Analysis on Mechanical Characteristics of Rock with Two Pre-Existing Fissures," Sustainability, MDPI, vol. 14(22), pages 1-12, November.
    2. Kai Cui & Xiaotong Qin, 2023. "Landslide risk assessment of frozen soil slope in Qinghai Tibet Plateau during spring thawing period under the coupling effect of moisture and heat," 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(3), pages 2399-2416, February.
    3. Guoqing Chen & Yi Wan & Yang Li & XiangJun Pei & Da Huang, 2021. "Time-dependent damage mechanism of rock deterioration under freeze–thaw cycles linked to alpine hazards," 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. 108(1), pages 635-660, August.
    4. Yong Wu & Xinpo Li & Lei Zhu, 2021. "Fracture mechanism of rock collapse in the freeze–thaw zone of the eastern Sichuan–Tibet Mountains under seasonal fluctuating combinations of water and heat," 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. 108(2), pages 2309-2333, September.
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