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在多年冻土地区修建铁路路基,打破了原来天然地表与外界的热力平衡,地下温度场将重新分布,可能引起多年冻土区冻土退化,从而影响路基的稳定性。本文基于多年东突地区的路基温度场的数值模拟计算分析以及远期的预测,为该地区的工程设计及施工提供可以借鉴的资料。
The construction of railway embankment in permafrost regions breaks the original thermal balance between natural surface and the outside world, and the underground temperature field will be redistributed, which may cause the permafrost degradation in the permafrost region and thus affect the stability of roadbed. Based on many years of numerical simulation calculation and prediction of subgrade temperature in the East Tuzuo area, this paper provides some references for engineering design and construction in this area.