中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2013, Vol. 32 ›› Issue (2): 285-0289.DOI: 10.3969 /j.issn.1674-0696.2013.02.24

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金佛山混凝土面板堆石坝地震反应3-D 分析

刁志明1,马伟2,刘良军1,王俊杰2   

  1. 1. 重庆市水利电力建筑勘测设计研究院,重庆400020; 2. 重庆交通大学省部共建水利水运工程教育部重点实验室,重庆400074
  • 出版日期:2013-04-15 发布日期:2018-01-26
  • 作者简介:刁志明( 1969—) ,男,重庆人,高级工程师,主要从事水工结构设计研究。

3-D Finite Element Analysis on Seismic Response of Jinfo Mountain Concrete Faced Rockfill Dam

Diao Zhiming1,Ma Wei2,Liu Liangjun1,Wang Junjie2   

  1. 1. Chongqing Survey & Design Institute of Water Resources,Electric Power & Architecture,Chongqing 400020,China; 2. Key Laboratory of Hydraulic & Waterway Engineering of the Ministry of Education, Chongqing Jiaotong University,Chongqing 400074,China
  • Online:2013-04-15 Published:2018-01-26

摘要: 基于等效线性模型,采用三维非线性动力有限元法对拟建金佛山混凝土面板堆石坝进行了地震动力反应分析,重点研究了坝体在地震荷载作用下的加速度反应、动应力反应、地震永久变形的规律和分布。计算结果表明: 坝顶附近加速度反应较大,应采取相应的抗震工程措施; 坝体动应力反应较小; 坝体残余变形不大; 大坝整体抗震性能较好,满足给定地震下的抗震安全性要求。

关键词: 混凝土面板堆石坝, 等效线性模型, 三维动力分析, 永久变形, 金佛山水利工程

Abstract: Based on the equivalent linear model,3-D nonlinear dynamic finite element method is used in seismic dynamic response analysis of Jinfo Mountain CFRD ( Concrete Faced Rockfill Dam) . The response of acceleration,dynamic stress,the regular pattern and distribution of permanent deformation under seismic loads are studied. The results show that the downstream slope near the crest has larger acceleration response,it should be taken appropriate anti-seismic engineering measures; the reaction of dynamic stress and dynamic shear stress for dam body is very little; and the permanent deformation for dam body is not large. The overall anti-seismic performance of the dam is good enough to meet the anti-seismic stability requirements under the given earthquake.

Key words: concrete faced rockfill dam, equivalent linear model, 3-D dynamic analysis, permanent deformation, Jinfo

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