国内某水电站水下自密实混凝土配比工艺及应用

Technology and Application of Proportion of Underwater Self-Compacting Concrete in a Hydropower Station in China

在水电站施工中,由于水电站发电运行的限制,各水工建筑物损毁维护加固或重新建造,需要考虑没有干地施工的条件限制,水下混凝土施工方案是目前的较佳选择。文章通过金牛坪水电站水下修补真实案例,从工艺、原材料的质量要求及施工注意事项三个方面阐述水下自密实混凝土施工工艺,以期为水下修补施工提供参考。

In the construction of hydropower stations,due to the limitations of power generation and operation,various hydraulic structures are damaged,maintained,reinforced,or rebuilt.It is necessary to consider the lack of dry land construction conditions,and the underwater concrete construction plan is currently the preferred choice.The construction of underwater self-compacting concrete has always been a hot topic of attention in hydropower engineering construction.This article elaborates on the real case of underwater repair in Jinniuping Hydropower Station from three aspects:process,quality requirements of raw materials,and construction precautions in order to provide reference for underwater repair construction.