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东北地区几个大中型水电站,因混凝土冻融破坏而不同程度的影响了建筑物的安全运行。丰满电站运行40多年,由于冻融破坏而进行的较大规模坝面补修就有两次。云峰及桓仁两水电站虽然运行仅10几年,前者由于滥流面混凝土普遍产生冻融破坏并有钢筋外露已影响泄洪;后者局部混凝土也发生冻融破坏。葠窝水库投入运行6~7年溢流坝面混凝土也已发生严重的冻融破坏。
Several large and medium-sized hydropower stations in northeast China, due to concrete freeze-thaw damage and varying degrees of impact on the safe operation of buildings. The Fengman Power Station has been in operation for more than 40 years. There have been twice as many large-scale dam surface repairs due to freeze-thaw damage. Yunfeng and Huanren two hydropower stations, although only 10 years of operation, the former due to the widespread production of surface-freezers freeze-thaw damage and exposed steel has been affected by flood discharge; the latter part of the concrete also freeze-thaw damage. Shenwo reservoir into operation 6 to 7 years spillway concrete has also been a serious freeze-thaw damage.