混凝土面板堆石坝坝顶溢流技术探讨

针对混凝土面板堆石坝坝顶溢流的关键技术难题 ,通过大量变形实测资料的统计 ,用变形条件不利的工程实例分析变形特性对其上部结构 ,包括挡水闸门、泄洪建筑物、渗漏排水等因素的影响 ,提出相应的对策和工程措施 ,并进一步对造价和工期进行剖析 ,认为混凝土面板堆石坝坝顶溢流技术上可行 ,经济效益显著

Study on Crest Overflow of Concrete Faced Rockfill Dams

This paper focuses on the key and difficult technical problem of crest overflow of concrete faced rockfill dams(CFRD).Through a large number of statistics of recorded deformation data and analysis of deformation features under unfavourable deformation condition and it impact on upper structure performance,including the effects on water retaining sluice gate,flood relief structure,drainage structures etc.Some engineering measures are put forward,and the cost and the period of construction are analysed.Finally,it is concluded that the crest overflow sheme of CFRD is technically feasible and the economic benefit is remarkable.