锦屏一级特高拱坝混凝土 4. 5 m 仓层厚度施工关键技术

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。

Key construction techniques of 41 52m thick warehouse layer of Jinping level I super high concrete arch dam

The w arehouse layer thickness of pouring concrete arch dam is o ne of the key factor s affecting the constructio n quality and prog ress. T he breakthro ug h o f the heig ht o f w arehouse layer thickness o f pour ing co ncr ete faces a ser ies o f challeng es inclu2 ding the temperatur e co ntr ol and cr ack preventio n, three height difference contro l, and bo dy contr ol, but it also prov ides the t re2 mendo us pro gr ess and economic benefits for the co nstr uctio n. In this paper, the key const ruction techniques of the 41 52m thick war eho use la yer o f Jinping lev el I super hig h concrete arch dam w ere investig ated. T he research results can pr ovide technical suppo rt fo r similar pr ojects in future.