对高面板堆石坝一些问题的探讨  

Discussion on Some Problems Observed in High Concrete Faced Rock-fill Dam

作　　者：肖化文[1] 杨清[1] 

机构地区：[1]水利部长江水利委员会勘测规划设计研究院,湖北武汉430010

出　　处：《水利水电技术》2003年第2期9-12,21,共5页Water Resources and Hydropower Engineering

摘　　要：在高混凝土面板堆石坝的施工和蓄水过程中有时会出现一些问题:如施工期面板的脱空、坝体上部垫层区产生裂缝等;蓄水后期面板变形明显增大和面板顶部变形较大等.这些问题中,有些已被人们关注,有些则在近期才引起注意.从有限元分析的角度,对这些问题进行了初步探讨.分析表明,有的问题难以避免,有的则可采取一定的措施加以避免或减轻.During construction and impounding of high CFRD,sometimes some problems can be met,for instance,the dislocation of the concrete slab face and the cracking of the upper cushion layer during construction,the obvious increase of the face deformation at the later stage of the reservoir im pounding and the larger deformation of the top face after impounding,etc.Some of the problems have been recognized,while others were concerned only recently.The preliminary consideration for these problems is provided in terms of FEM analysis.The analysis indicates that some problems are difficult to be avoided but others can be avoided or reduced by use of certain measures.

关 键 词：混凝土面板堆石坝 面板脱空 面板变形 有限元 

分 类 号：TV641.43[水利工程—水利水电工程]