构皮滩水电站下游碾压混凝土围堰施工技术

Construction Technology of the Downstream Roller Compacted Concrete Cofferdam of the Goupitan Hydropower Station

构皮滩水电站下游碾压混凝土围堰顶部部分拆除后形成“金包银”结构的二道坝,工程结构复杂,质量要求高。在工期紧、任务重的情况下,通过优化道路布置、合理划分仓面、多种模板并用等措施,加快了施工进度,实现了度汛目标要求,保证了施工质量和安全。

After the removal of crest portion of the downstream RCC cofferdam of the Goupitan hydroelectric project, it will serve as a ＂silver wrapped in gold ＂ permanent submerged dyke. In fact this will be a very complex strueture with high quality requirement. Despite of the tight construction schedule and heavy work load, the designed schedule, quality and safety of the construction work have been achieved and the project target has been hit.