碾压混凝土坝稳定临界准则公式及设计安全系数研究  

Critical stability ctriterion formula and design safety factors of RCC gravity dams

作　　者：常晓林[1] 陆述远[1] 赖国伟[1] 

机构地区：[1]武汉水利电力大学水力发电工程学院

出　　处：《水利学报》1998年第5期60-64,共5页Journal of Hydraulic Engineering

基　　金："八五"国家科技攻关课题;国家自然科学基金

摘　　要：本文在研究碾压混凝土重力坝渐进破坏过程和可能失稳方式的基础上，提出了以准弹性临界作为稳定临界准则的设计极限状态，分析了按该准则设计的大坝的实际工作状态，导出了以准弹性强度储备系数为设计安全指标的审查公式以及形式与抗剪断公式相同的简化公式，探讨了定量计算考虑各种因素影响的相应设计安全系数的合理取值，并与现行规范方法进行了比较．On the basis of investigations into the progressive yield process and the possible failure modes of RCC gravity dams,the quasi elasticity design limit state of the ctrtical stability criterion is proposed and the real working state of the dams designed according to the ctriterion is discussed.A check formula using the material strength reducing factor as the safety index and a simplified formula similar to against sliding stability fromula are derived.Finally,the corresponding design safety factors are given by using FEM calculations with various influence parameters to be taken into account.

关 键 词：碾压混凝土坝 稳定临界准则 设计安全系数 

分 类 号：TV311[水利工程—水工结构工程] TV642.2