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我国北方寒冷地区的水工建筑物,如溢流坝面、泄水孔等部位表层混凝土,除遭受高速水流的冲磨或气蚀作用力破坏外,往往因自然冻融循环作用而引起的破坏更为迅速和严重。因此,增强这些部位混凝土的抗冻融能力,对于减少工程的维修和延长建筑物的使用寿命等都具有重要的意义。近几年来,我们针对白山、太平湾等水电工程大坝溢流坝面、深水孔和护坝等部位
In the cold areas of northern China, hydraulic structures, such as overflow dam surface, discharge hole, and other parts of the surface concrete, in addition to being subjected to high-speed water flow erosion or cavitation damage, often caused by the natural freeze-thaw cycle caused by the destruction More quickly and severely. Therefore, strengthening the antifreeze-thaw capacity of concrete in these areas is of great significance for reducing engineering maintenance and prolonging the service life of buildings. In recent years, we have targeted dams, dams, dams, dams, dams and other dams of hydropower projects in Baishan and Taiping Bay.