碾压混凝土在高坝洲水利枢纽中的应用

在高坝洲水利枢纽纵向围堰和二期工程中采用ＲＣＣ施工，不仅能够简化施工导流措施，缩短工期，而且可以达到节省工程投资、提前发电的目的。为了便于ＲＣＣ施工，在结构设计中对纵向围堰及二期工程坝体作了相应的调整；在施工方案和施工工艺上也进行了优化。这些都为ＲＣＣ施工创造了条件。从已完成的纵向围堰ＲＣＣ施工的效果来看，施工质量和进度是良好的。在二期工程中，通过隔河岩水库调蓄施工期导流流量，并采取全新面薄层连续

Application of RCC to GP

Application of RCC to longitudinal cofferdam and second stage works of Gaobazhou Project can not only simplify the river diversion works and shorten the construction time, but also save the cost and produce the electric energy ahead of schedule. In order to facilitate the RCC construction, the structural design of the longitudinal cofferdam and the second stage dam section is correspondingly revised, and the relevant construction schemes and constructional techniques are optimized. The RCC longitudinal cofferdam was completed in schedule with good quality. During the second stage construction, by regulating the river flow with Geheyan Reservoir and adopting the method of concreting successively in thin-layer over the whole area of dam section, the upstream RCC cofferdam in original design may be cancelled. And, the power generation may be realized ahead of schedule, as the dam will be ready for water retaining.