坝肩边坡动力响应数值模拟研究
Numerical Simulation Study on Dam Shoulder Slope Dynamic Response
李科学 1刘恩龙2
作者信息
- 1. 四川省地质工程勘察院集团有限公司,四川 成都 610065
- 2. 四川大学水利水电学院,四川 成都 610065
- 折叠
摘要
文中采用有限元数值计算方法,模拟了某坝肩边坡在地震荷载作用下的动力响应;基于动力时程分析法,分析了该边坡在输入地震动峰值加速度0.45 g下的动应力、动应变、单元的安全度以及加速度分布规律;发现了坝肩边坡内无贯通的剪切破坏面,整体抗震性能较好,坝肩边坡具有一定的抗震稳定性安全储备,可为坝肩边坡设计提供指导.
Abstract
The finite element numerical method is employed to simulate the dynamic response of a dam shoulder slope under seismic loads.Based on the dynamic time-history analysis method,the dynamic stresses,dynamic strains,safety factors of the elements,and the distribution pattern of acceleration are analyzed for the slope under a peak ground acceleration of 0.45g.It is found that there are no continuous shear fail-ure surfaces within the dam shoulder slope,indicating good overall seismic performance and a certain level of seismic stability reserve.This study can be a guidance for designing the dam shoulder slope.
关键词
坝肩边坡/地震荷载/数值模拟/动力响应Key words
Dam shoulder slope/Seismic load/Numerical simulation/Seismic response引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据