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<p>In regions where transportation infrastructure relies on permafrost foundations, the degradation of frozen soil poses a significant threat to the safety and stability of the entire system. Preventing permafrost thaw is a critical challenge in the development and maintenance of transportation networks in cold regions, but identifying effective solutions remains complex. This study presents a comparative analysis of various methods for addressing permafrost degradation in railway subgrades, specifically focusing on the use of thermal engineering calculations to evaluate the effectiveness of riprap, snow barriers, and thermal insulation materials (e.g., polystyrene foam) in stabilizing subgrade thermal conditions. The results suggest that these approaches have the potential to mitigate permafrost degradation and ensure the long-term safety and stability of railway systems in such regions.</p>

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Simulation of Anti-Degradation Measures of Permafrost Under Railways

  • 期刊论文

  • 发表日期：

    2025年12月3日

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  • Alexander Isakov,
  • Irina Moiseeva,
  • Ekaterina Kravchenko,
  • Weiwei Niu,
  • Jiankun Liu,
  • Renqingcairang

摘要

In regions where transportation infrastructure relies on permafrost foundations, the degradation of frozen soil poses a significant threat to the safety and stability of the entire system. Preventing permafrost thaw is a critical challenge in the development and maintenance of transportation networks in cold regions, but identifying effective solutions remains complex. This study presents a comparative analysis of various methods for addressing permafrost degradation in railway subgrades, specifically focusing on the use of thermal engineering calculations to evaluate the effectiveness of riprap, snow barriers, and thermal insulation materials (e.g., polystyrene foam) in stabilizing subgrade thermal conditions. The results suggest that these approaches have the potential to mitigate permafrost degradation and ensure the long-term safety and stability of railway systems in such regions.