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The climate keeps the warming trend, and it occurs the warming conditions provide the faster rate for the cryolitozone than the other regions. It affects on the permafrost soils and generates additional problems for the sustainability of infrastructure in these areas. One of the basic climatic factors which makes destruction for permafrost is the sun heating. In this paper an investigation of on the contribution of insolation to the reduction of the bearing capacity of the support piles of a railway bridge located in the permafrost zone. The mathematical model considers global warming with the rate of 0.04 °C per year. The calculations were carried out for 40 years starting from the construction of the bridge in 1983 and showed that the bearing capacity of the soil could be increased by 18% by 2023 if protection from solar radiation is used for a specific railway bridge support.

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Sun Heating Effect on Bearing Capacity of the Permafrost Soil in the Pile Basement in Cryolitozone

  • 会议论文

  • 发表日期：

    2025年

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  • M. Yu Filimonov,
  • N. A. Vaganova

摘要

The climate keeps the warming trend, and it occurs the warming conditions provide the faster rate for the cryolitozone than the other regions. It affects on the permafrost soils and generates additional problems for the sustainability of infrastructure in these areas. One of the basic climatic factors which makes destruction for permafrost is the sun heating. In this paper an investigation of on the contribution of insolation to the reduction of the bearing capacity of the support piles of a railway bridge located in the permafrost zone. The mathematical model considers global warming with the rate of 0.04 °C per year. The calculations were carried out for 40 years starting from the construction of the bridge in 1983 and showed that the bearing capacity of the soil could be increased by 18% by 2023 if protection from solar radiation is used for a specific railway bridge support.