水布垭面板坝挤压边墙技术研究  

FEM analysis for crush sidewall of SHUIBUYA CFRD Dam

作　　者：肖化文 

机构地区：[1]长江水利委员会长江勘测设计院,武汉430010

出　　处：《水科学与工程技术》2004年第6期24-27,共4页Water Sciences and Engineering Technology

摘　　要：挤压边墙技术是混凝土面板堆石坝中垫层料施工和保护的新技术。结合水布垭工程,应用有限元分析技术,对挤压边墙有关问题进行了探讨。分析认为,当混凝土面板与挤压边墙取小约束、挤压边墙与垫层取大约束、挤压边墙取低强度、低弹模、泊松比为0.25～0.30,内摩擦角不小于40°时,水布垭面板坝设置挤压边墙不会对面板、接缝应力变形带来大的影响,面板和挤压边墙的脱空值较小。The technique of crush side wall is a new technique applied in Concrete Faced Rockfill Dam(CFRD)for construction and protection of pad layer(II A material).Some problems about the crush sidewall of SHUIBUYA Projectare discussed with FEM analysis.The results indicate that the crush side wall of SHUIBUYA CFRD will not affect the slab face and joints very much and the dislocation of both the slab face and crush side wall is not big,provided that the restraint between the slab face and crush side wall is small while the restraint between the crush side wall and pad layer is large and the crush sidewall has low strength and modulus,with Polson ratio0.25～0.30、inner fric-tion angle no less than40°.

关 键 词：挤压边墙 有限元 接缝应力 泊松比 混凝土面板堆石坝 

分 类 号：TV641.43[水利工程—水利水电工程]