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) ›› 2011, Vol. 30 ›› Issue (2): 277-281.DOI: 10.3969/j.issn.1674-0696.2011.02.23

• • 上一篇    下一篇

强震边坡动力响应及安全系数计算

杨洁1,杨上清2,肖盛燮1   

  1. 1.重庆交通大学防灾减灾研究所, 重庆400074; 2.四川大学建筑与环境学院, 四川成都610207
  • 收稿日期:2011-03-01 修回日期:2011-03-08 出版日期:2011-04-15 发布日期:2015-03-12
  • 作者简介:杨洁(1987 — ),女,四川巴中人,硕士研究生,主要从事岩土边坡工程稳定性及其数值分析方面的研究。E-mail:yj888001@yahoo.com.cn。
  • 基金资助:
    国家自然科学基金项目(50879097)

Dynamic Response and Safety Coefficient Calculation of Slope under Severe Earthquake

YANG Jie1, YANG Shangqing2, XIAO Shengxie1   

  1. 1.Institute of Disaster Prevention Engineering, Chongqing Jiaotong University, Chongqing 400074, China;2.College of Architecture and Environment, Sichuan University, Chendu 610207, Sichuan, China
  • Received:2011-03-01 Revised:2011-03-08 Online:2011-04-15 Published:2015-03-12

摘要: 运用ANSYS大型通用软件,对一均质边坡进行地震荷载模拟分析;根据Wilson-时程分析方法,将天津地 震波输入到边坡模型上,对该边坡进行了应力、位移、速度和加速度动力响应分析。并由摩尔-库伦强度理论对 ANSYS通用后处理器进行编程,得出边坡的安全系数分布云图。当安全系数为0.521时,全图的部分穿越临空边 界,有滑移的可能,得出该模型不稳定,安全系数为0.521。

关键词: 地震, 边坡, 动力响应, 安全系数

Abstract: A seismic analysis of a uniform slope was made through ANSYS. According to the Wilson-θ time history analysis and dynamic response analysis of stress, displacement, velocity and acceleration w ere done under the Tianjin seismic which was input into the slope model. In the POST1, safety factor was calculated through stress field by Moore- coulomb’s Strength Theory; safety coefficient distribution map was obtained. When safety factor w as 0.521, a section crossed volley border, there fore it had the possibility of sliding. It was demonstrated that the model with safety coefficient 0.521 was unstable.

Key words: earthquake, slope, dynamic response, safety coeffiient

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