我国北方冬季严寒,土层冻结严重,建筑基础易受冻害。如果在设计与施工中重视不够,措施不当,可能因基础受冻害而导致建筑物裂缝、倾斜或倒塌。而在地势低洼、地下水位高、土质松软、含水率又高的地区,土层的冻胀力更大,所以,给基础(尤其浅基础)带来的危害性也就更为严重。 The winter in the north of China is very cold, the soil is frozen and the building foundation is vulnerable to freezing. If insufficient attention is paid to design and construction, improper measures may lead to cracks, sloping or collapse of buildings due to frost damage. In regions where the terrain is low, the groundwater level is high, the soil is soft, and the moisture content is high, the frost heave force of the soil layer is greater. Therefore, the harm caused to the foundation (especially the shallow foundation) is even more serious.