白沙水电站混凝土面板堆石坝剖面合理设计  

Reasonable section design of Baisha concrete-faced rockfill dam

作　　者：宋文晶[1] 杨晓明[2] 

机构地区：[1]清华大学水沙科学与水利水电工程国家重点实验室,北京100084 [2]湖北省水利水电勘测设计院,武汉430070

出　　处：《水力发电学报》2008年第2期55-59,共5页Journal of Hydroelectric Engineering

摘　　要：控制堆石体变形以保证面板及接缝止水系统的安全可靠是关系面板堆石坝发展的重要问题,软岩筑坝日益受到重视。白沙面板坝工程的堆石料源为岩性较硬的辉石玢岩和较软的粉沙质板岩,为充分论证最大限度利用软岩的可能性,本文对硬岩剖面和软岩剖面两种设计横剖面进行了计算比较分析。针对分析结果中软岩剖面变形过大的情况,设计修改了坝体分区,计算分析表明新的设计剖面合理,变形较小,面板和止水系统能够满足安全可靠的要求,在设计中予以采用。It is important to control rockfill deformation for ensuring the security of anti-seepage system in concretefaced roekfill dam development. Engineers pay more attentions to the utilization of soft rockfill. The main roekfill material in IIIB zone of Baisha CFRD is pyroxene porphyry and the secondary rockfill material in IIIC zone is silt slate. There are two design cross sections of sound rockfill zone and of soft rockfill zone in Baisha dam, FEM analysis is made to demonstrate the feasibility of making the best use of soft slate rockfill. According to the excessive deformation of soft rockfill zone, cross section design of the rockfill body is modifed. The deformation of new section is reasonable, the slab and waterstop systems are safe.

关 键 词：水工结构 应力变形 有限元分析 混凝土面板堆石坝 剖面设计 

分 类 号：TV31[水利工程—水工结构工程]