寒冷地区渠道混凝土衬砌防冻害的几个问题

Several problems about anti-freeze of concrete lining brickworks in cold areas

根据我国近年来水工建筑物抗冻技术研究成果和目前北方地区渠道混凝土衬砌体的冻融破坏问题，介绍了混凝土衬砌渠 道的抗冻胀设计方法和相应的抗冻技术措施。

According to the anti-freeze technique achievement of hydrology engineering building in China recent years and the frozen-melting damage of concrete lining brickworks in north area at present, this paper introduced the frozen-preventing design method and the suitable technical measures of concrete ditch lining brickworks.