| 3. | In permafrost areas , thaw - settlement problem is the main content for the frozen harmfulness study ; in the seasonally frozen soil areas , frozen expansion problem is considered most in order to prevent and father the frozen harmfulness for the groundwork , the thaw - settlement index is thought little relatively , but it has been investigated from the data of frozen harmfulness , the thaw - settlement behavior still has an active effect on the construction stability in the seasonally frozen soil areas 在多年冻土区,融沉问题是冻害研究的主要内容;在季节冻土地区,为了防治地基冻害问题,考虑最多的往往是冻胀问题,对融沉指标一般考虑的比较少,但是根据调查冻害资料来看,融沉性在季节冻土地区的建筑物稳定性方面的应用仍然具有积极的意义。 |