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多年冻土中的融区是在冻土腹部地区,由于温泉或大河流水的热量造成该地区不存在多年冻土,其地质特征既不同于多年冻土,又不同于一般融土。虽然地面一定深度下的土没有冻结,但它有一层较厚的季节冻土层,其厚度一般在3～5M。由于这层季节冻土层的存在,在其冬季冻结时土壤产生冻胀隆起,夏季融化时土壤又下沉。这样会给建筑物造成一定程度的危害,所以在工程设
The melting zone in permafrost is in the abdomen of the frozen earth. Due to the heat of hot springs or rivers, there is no permafrost in the area, and its geological characteristics are different from permafrost and general melting. Although the soil does not freeze at a certain depth on the ground, it has a thick layer of seasonal frozen soil and its thickness is generally 3 to 5M. Due to the presence of this layer of seasonally frozen soil, the soil is frost heaving and uplifting when it freezes in winter, and the soil sinks again when it melts in summer. This will cause a certain degree of damage to the building, so in the project design