拱坝拱座稳定的刚体极限平衡法的分项系数分析  

Rigid Block Ultimate Equilibrium Multiple Item Coefficients Method for Arch Dam Abutment Stability Analysis

作　　者：饶宏玲[1] 

机构地区：[1]国家电力公司成都勘测设计研究院,四川成都610072

出　　处：《水电站设计》2005年第3期1-6,共6页Design of Hydroelectric Power Station

摘　　要：通过论证,扩大了《混凝土拱坝设计规范》(SD145-85)中纯摩公式的适用范围,认为纯摩公式对Ⅰ、Ⅱ、Ⅲ级建筑物均适用。推导出用分项系数表达的、合理的拱坝拱座稳定分析刚体极平衡法的剪摩和纯摩极限状态方程,以及不同等级建筑物在不同设计状况下的各分项系数。In this paper through verification, applicable scope of the pure friction formula in《Concrete Arch Dam Design Standard （SD145 - 85）》is extended and can be applied to structures of all Ⅰ,Ⅱ,Ⅲ classes. The shear friction ＆ pure friction ultimate condition equation by use of rigid block ultimate equilibrium method for reasonable analysis of arch dam abutment stability have been derived ＆ coefficients of various items for structures of different classes under different design conditions have also be calculated in the paper.

关 键 词：拱座 稳定分析 稳定安全系数 刚体极限平衡法 抗剪强度 分项系数 

分 类 号：TV642.4[水利工程—水利水电工程] TV222