三岔河水电站一期面板反向水压力破坏处理

Treatment of Reverse Water Pressure on the First Stage Concrete Face of Sanchahe Hydropower Station Dam

三岔河水电站一期混凝土面板受施工期反向水压力作用,造成部分面板发生抬动错位、脱空、开裂、反向渗水等破坏;根据面板破坏的原因、型式、范围及程度等采取了相应的处理措施,经蓄水至今3年的正常运行表明,对面板破坏原因分析与相应的处理措施合理有效,使面板的各项指标达到了设计要求。

In Sanchahe Hydropower Station,damages such as dislocation,void,cracking and reverse seepage are observed in part of the first stage concrete face of the dam due to the reverse water pressure acted on the concrete face during the construction period.According to the different causes,modes,range and extent of the damages,corresponding treatment measures are implemented.Practical operation of the dam since the impoundment shows that the treatment is effective.