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Moisture–temperature changes and freeze–thaw hazards on a canal in seasonally frozen regions

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  • Shuangyang Li
  • Yuanming Lai
  • Wansheng Pei
  • Shujuan Zhang
  • Hua Zhong

Abstract

Freeze–thaw action is a complex moisture–heat-mechanics interaction process, which has caused prevailing and severe damages to canals in seasonally frozen regions. Up to now, the detailed frost damage mechanism has not been well disclosed. To explore the freeze–thaw damage mechanism of the canal in cold regions, a numerical moisture–heat-mechanics model is established and corresponding computer program is written. Then, a representative canal in the northeast of China is taken as an example to simulate the freeze–thaw damage process. Meanwhile, the robustness of the numerical model and program is tested by some in situ data. Lastly, the numerical results show that there are dramatic water migration and redistribution in the seasonal freeze–thaw variation layer, causing repetitive frost heave and thaw settlement, and tension–compression stresses. Therefore, the strengths of soil are reduced after several freeze–thaw cycles. Further, the heavy denudation damage and downslope movement of the canal slope would be quite likely triggered in seasonally frozen regions. These zones should be monitored closely to ensure safe operation. As a preliminary study, the numerical model and results in this paper may be a reference for design, maintenance, and research on other canals in seasonally frozen regions. Copyright Springer Science+Business Media Dordrecht 2014

Suggested Citation

  • Shuangyang Li & Yuanming Lai & Wansheng Pei & Shujuan Zhang & Hua Zhong, 2014. "Moisture–temperature changes and freeze–thaw hazards on a canal in seasonally frozen regions," 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. 72(2), pages 287-308, June.
    • Handle: RePEc:spr:nathaz:v:72:y:2014:i:2:p:287-308
    DOI: 10.1007/s11069-013-1021-3
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    References listed on IDEAS

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    1. Zhongqiong Zhang & Qingbai Wu, 2012. "Thermal hazards zonation and permafrost change over the Qinghai–Tibet Plateau," 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. 61(2), pages 403-423, March.
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    Cited by:

    1. Ma, Qinguo & Luo, Xiaoxiao & Gao, Jianqiang & Sun, Weiyu & Li, Yongdong & Lan, Tianli, 2022. "Numerical evaluation for cooling performance of a composite measure on expressway embankment with shady and sunny slopes in permafrost regions," Energy, Elsevier, vol. 244(PB).
    2. Yunjiang Zuo & Yuedong Guo & Changchun Song & Shaofei Jin & Tianhua Qiao, 2018. "Study on Soil Water and Heat Transport Characteristic Responses to Land Use Change in Sanjiang Plain," Sustainability, MDPI, vol. 11(1), pages 1-16, December.
    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.

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