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本文对大兴安岭林区冻害原因进行了分析。根据工程实例证明,在大兴安岭林区,根据不同的地质条件,在该地区大量应用浅基础是可能的,这样在该地区的许多工程构造物基础可从3.25m(该地区冻结深度为3.00m)降到1—1.5 m,从而使工程造价降低10％左右。因而可以取得明显的经济效益。最后论述了浅基础的应用条件,对林区应用浅基础有一定借鉴作用。
This article analyzes the cause of frost damage in the Greater Xing’an Mountains. According to engineering examples, it is possible to apply a large number of shallow foundations in this area in the Greater Xing’an Mountains in accordance with different geological conditions. Thus, many foundations of engineering structures in the area can be constructed from 3.25m (frozen depth of 3.00m in this area) Down to 1-1.5 m, thus reducing the project cost by about 10%. Which can achieve significant economic benefits. Finally, the application conditions of shallow foundation are discussed, which can be used as a reference for the shallow foundation of forest area.