水下自密实混凝土在平班水电站上游右岸护坡加固中的应用

Application of Underwater Self-Compacting Concrete in Slope Protection Reinforcement of the Upper Right Bank of Pingban Hydropower Station

在水利水电工程施工中,由于电站发电运行的限制,各水工建筑物在损毁后的维护加固或重新建造,需要考虑没有干地施工的条件限制,或多或少会采取水下混凝土施工方案。水下自密实混凝土施工一直是水电工程施工关注的热点。文章基于国内平班电站水下自密实混凝土施工实例,从新工艺、原材料的质量要求及施工注意事项三个方面进行阐述,以供参考。

In the construction of water conservancy and hydropower projects,due to the limitation of power generation and operation of the power station,all hydraulic structures are damaged,maintained and reinforced or rebuilt.It is necessary to consider the condition that there is no dry land construction,and more or less underwater concrete construction scheme will be adopted.Underwater self-contacting concrete construction has always been the focus of attention in the construction of hydropower projects.This paper expounds from three aspects of the new technology quality requirements of raw materials and construction precautions through the real case of underwater self-compacting concrete construction in Pingban Hydropower Station in China for reference.