在寒冷地区的建筑结构物,如勘测设计、施工、或使用维护不当,往往因受到地基土的冻胀或融陷而引起冻害,以致影响使用,甚至产生严重破坏。这种冻害,在我们黑龙江省的发电、变电以及送电的建筑结构中,都有所见。如某电厂的生产办公楼,采用爆扩桩、基础梁的设计方案。根据厂址地质的冻胀情况,设计上采取了在基础梁底面下 Building structures in cold areas, such as survey, design, construction, or improper use, are often caused by frost heave due to frost heave or collapse of foundation soil, which may affect the use and even cause serious damage. This kind of frost damage has been seen in our building structure for power generation, power transformation and power transmission in Heilongjiang Province. For example, the production office building of a power plant adopts the design scheme of explosion-expanded piles and foundation beams. According to the geology of site geology, the design was taken under the foundation beam