广义位移法在硗碛心墙堆石坝三维静力分析中的应用  

Application of Generalized Freedom Method to Three-dimensional Static Force Analysis of Qiaoqi-earth-core Rock-filled Dam

作　　者：王新[1] 李同春[1] 张宏勇[2] 李宏恩[1] 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098 [2]广西电力工业勘察设计研究院,广西南宁530023

出　　处：《水电能源科学》2007年第4期85-89,共5页Water Resources and Power

摘　　要：将广义位移法应用于硗碛砾石土心墙堆石坝三维静力计算分析,用板、梁单元模拟防渗墙和廊道原结构的力学机制和几何特性,减少了模型自由度,提高了计算效率。同时将六面体单元与板、梁单元对比分析,两种计算结果基本吻合,防渗墙和廊道的位移和应力分布规律和数值均能满足要求。Generalized freedom method is used to calculate three-dimensional static force analysis of Qiaoqi-earthcore rock-filled dam. It simulates the mechanics and geometrical characteristics of the prototype of cut-off wall and gallery using plate and beam elements, which reduces the number of the freedom of the model and enhances the computation efficiency. At the same time, hexahedron element is adopted to contrast analysis with plate and beam elements, the results of the two methods are basically consistent. The distribution of the displacements and stresses of cut-off wall and gallery and numerical results meet requirement.

关 键 词：广义位移法 薄壁结构 板单元 粱单元 

分 类 号：TV641.4[水利工程—水利水电工程]