九甸峡混凝土面板堆石坝地震反应特性研究  

Study on Earthquake Response Behaviors of Jiudianxia Concrete Face Rockfill Dam

作　　者：吕生玺[1] 沈振中[2] 温续余[1] 

机构地区：[1]甘肃省水利水电勘测设计研究院,兰州730000 [2]河海大学水利水电工程学院,南京210098

出　　处：《中国农村水利水电》2008年第2期88-91,共4页China Rural Water and Hydropower

摘　　要：采用三维非线性动力有限元方法,对九甸峡水利枢纽混凝土面板堆石坝的地震反应特性进行深入研究,获得了该坝在设计地震曲线及峰值加速度时的动力反应特性,包括坝体和面板的加速度反应、位移反应、应力反应,以及周边缝和面板接缝的位移反应等,揭示了峡谷地形和深厚覆盖层地质条件下面板堆石坝地震反应的一般规律,分析了该坝的抗震稳定性,论证了设计方案的合理性,提出了抗震设计建议。By use of the 3-dimensional dynamic non-linear FEM, the earthquake response behavior of Jiudianxia concrete face rockfill dam is researched in detail. The dynamic response properties of the dam are obtained at design peak acceleration of input earthquake curve, such as acceleration response, displacement response, stress response of rockfill body and concrete face, and displacement re- sponse of its peripheral joint and slab joint. The general law of earthquake response is opened out for the dam in a canyon landform and geological condition of deep cover. The anti-seismic stability of the dam is analyzed, and some conclusions and suggestions for anti-seismic design are proposed accordingly.

关 键 词：面板堆石坝 地震反应 抗震稳定性 

分 类 号：TV641.4[水利工程—水利水电工程]