冻土地区水工建筑物的工程运用实践表明,冻害是水工建筑物破坏的主要原因之一,其中面广量大的小型渠系水工建筑物更为严重.寒冷地区水工建筑物的设计目前还没有统一的规范和防冻设计准则,这是寒冷地区相当数量水工建筑物,特别是小型水工建筑物设计不能做到既安全又经济合理的主要原 Engineering practices of hydraulic structures in permafrost areas show that frost damage is one of the major causes of damage to hydraulic structures, of which the large-scale small-sized drainage system hydraulic structures are more serious. At present, there is no unified norms and antifreeze design guidelines, which is a considerable number of cold buildings in the hydraulic structures, especially small hydraulic structures can not be designed to be both safe and economical and the main original