舟山地区面板灌砌石坝抗震安全评价研究  

Seismic Safety Evaluation of Concrete-Faced Grouted Rockfill Dam in Zhoushan Area

作　　者：严乾 王亚军 王友博 熊站 甘孝清[2] 左正 YAN Qian;WANG Yajun;WANG Youbo;XIONG Zhan;GAN Xiaoqing;ZUO Zheng(School of Maritime and Civil Engineering, Zhejiang Ocean University, Zhoushan 316002, Zhejiang, China;Yangtze River Scientific Research Institute, Wuhan 430010, Hubei, China;CPCEC China Power Complete Equipment Co., Ltd., Beijing 100080, China)

机构地区：[1]浙江海洋大学港航与交通运输工程学院,浙江舟山316002 [2]长江科学院工程安全与灾害防治研究所,湖北武汉430010 [3]中国电能成套设备有限公司,北京100080

出　　处：《水力发电》2018年第5期50-52,93,共4页Water Power

基　　金：国家自然科学基金项目(51109118);浙江省自然科学基金项目(LY14E090001);清华大学水沙科学与水利水电工程国家重点实验室开放基金项目(sklhse-2018-E-03)

摘　　要：以舟山地区某典型钢筋混凝土面板灌砌石坝为研究对象,考虑坝体复杂分区引发的材料非线性、分区间的接触性态及地震波激励的非确知性,建立动力非线性本构模型,并采用动力有限元法,对坝体-基岩系统整体及关键部位动力敏感性进行分析计算,得到较为全面的动力响应场分布。研究结果表明,面板灌砌石坝的上游锚固体系对于地震波激励极为敏感,且其工作状态对大坝主体结构的抗震安全性能具有控制作用。Taking a typical reinforced concrete-faced grouted rockfill dam （CFGRD） in Zhoushan of China as study object, the dynamic non-linear constitutive model is established by considering the non-linearity of material, the structural interaction and the seismic uncertainty to evaluate the seismic safety of dam. The dynamic sensibilities of dam-foundation system and key parts of dam are calculated with dynamic FEM, and a comprehensive dynamic response field distribution is obtained. The research results show that the upstream anchorage system otc CFGRD is extremely sensitive to seismic wave, and its working status has a controlling effect on the seismic performance of dam structure.

关 键 词：动力有限元 动力敏感性 抗震安全 面板灌砌石坝 舟山地区 

分 类 号：TV698[水利工程—水利水电工程]