摘要
为了研究面板堆石坝在地震作用下的动力、变形特性及安全性,以潘口面板堆石坝工程为研究对象,用有限元法对其进行地震反应分析,重点研究加速度反应特性、震后残余变形及面板变形、坝体单元抗震安全性及下游坝坡的抗震安全性。分析结果表明,大坝整体抗震性能较好,满足给定地震下的抗震稳定性要求;坝顶及坝顶附近下游坡部分区域的加速度反应较大,并发生相对较大的永久变形,为该面板堆石坝工程抗震中的薄弱部位。
In order to study the dynamic and deformation characteristics and the stability of CFRD through earthquake, the seismic response of Pankou CFRD is studied by using finite element method, focusing on the acceleration response characteristics, the post-earthquake residual deformation and panel deformation, and the seismic safety of dam elements and downstream slope. The results show that the overall seismic performance of the dam is good enough to meet the seismic stability requirements under the given earthquake, and meanwhile, the crest and the downstream slope near the crest has a larger acceleration response and the relative large permanent deformation occurs there.
出处
《水力发电》
北大核心
2012年第2期22-24,39,共4页
Water Power
基金
清华大学水沙科学与水利水电工程国家重点实验室统筹课题资助项目(2010-TC-2)
国家基金委青年科学基金项目(50809033)
关键词
面板堆石坝
地震反应
稳定分析
潘口水电站
CFRD
seismic response
stability analysis
Pankou Hydropower Station
