三峡大学学报（自然科学版）2012，Vol.34Issue(3)：1-5,5.
地下厂房洞室群动力反应时程分析
Dynamic Response Time-History Analysis of Underground Caverns
李良权 1方丹 1杨忠良1
作者信息
- 1. 中国水电顾问集团华东勘测设计研究院,杭州 310014
- 折叠
摘要
Abstract
The dynamic response of underground caverns under seismic load is analyzed using time-history a-nalysis method and 3D nonlinear dynamic model. The time-history of acceleration, displacement and distribution of stress field are discussed. The results show that the free surfaces and high sidewall of powerhouse have amplification effect on acceleration. The wave form of earthquake displacement response of surrounding rock is consistent with that input earthquake; and the permanent displacement and relative displacement due to earthquake are small. The stress of surrounding rock is relatively well distributed under seismic loading; and surrounding rock has low maximum principal stress and minor principal stress. Underground caverns are stable under design earthquake load.关键词
岩石力学/地下洞室/地震反应/时程分析法Key words
rock mechanics/ underground cavern/ seismic response/ time history analysis method分类
建筑与水利引用本文复制引用
李良权,方丹,杨忠良..地下厂房洞室群动力反应时程分析[J].三峡大学学报（自然科学版）,2012,34(3):1-5,5.
