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在永久冻土地区,由于土壤、水文、气象等自然条件特异,给建筑工程造成困难。例如,季节层的冻胀和沉陷,永冻土的上限下移和冻土融化,都能导致屋基变形甚至墙倒屋塌。苏联一些冻土地区,由于屋基稳定性不得保证,有百分之八十的建筑出现变形和破坏,五十年代在北极兴建的比较“现代化”房屋,也有百分之七十发生各种问题。
In the permafrost region, due to the specific natural conditions such as soil, hydrology, and weather, it is difficult for construction projects. For example, the frost heave and subsidence of the seasonal layer, the downward movement of the permafrost and the melting of the frozen soil all can lead to deformation of the foundation and even the collapse of the wall. In some frozen soil areas in the Soviet Union, 80% of buildings are deformed and destroyed due to the stability of the housing base. In comparison with the “modern” houses built in the Arctic in the 1950s, there were also 70 percent each. Problems.