锦屏一级特高拱坝混凝土4.5m仓层厚度施工关键技术

Key construction techniques of 4.5-m thick warehouse layer of Jinping level I super high concrete arch dam

拱坝混凝土浇筑仓层厚度是影响拱坝混凝土施工质量和进度的关键因素之一,混凝土浇筑仓层厚度高度的突破面临温控防裂、三大高差控制和体型控制等一系列挑战,但同时也可以为工程建设带来巨大的进度和经济效益。针对锦屏一级特高拱坝混凝土施工采用4.5m仓层厚度时的关键技术问题开展研究,研究成果工程应用效果显著,可为其它高拱坝筑坝时面临的类似问题提供技术借鉴。

The warehouse layer thickness of pouring concrete arch dam is one of the key factors affecting the construction quality and progress. The breakthrough of the height of warehouse layer thickness of pouring concrete faces a series of challenges including the temperature control and crack prevention, three height difference control, and body control, but it also provides the tremendous progress and economic benefits for the construction. In this paper,the key construction techniques of the 4.5-m thick warehouse layer of Jinping level I super high concrete arch dam were investigated. The research results can provide technical support for similar projects in future.