摘要
基于三维真非线性分析模型,从面板坝坝顶、下游坝坡和防渗体系安全控制角度探讨250 m级超高面板堆石坝极限抗震能力的研究方法和核心评价指标。按照新抗震设计规范的要求,基于坝顶震陷率、面板应力、连接缝变形和坝坡塑性滑动位移量等关键抗震安全控制指标定量评价某250 m级高面板堆石坝的极限抗震能力,为建立在强震区域的250 m级超高面板堆石坝抗震安全设计和抗震加固措施制定提供合理决策依据。
Based on the three-dimensional true nonlinear dynamic response analysis,the research methods and key evaluation indexes of the ultimate seismic capacity of 250m high concrete face rock-filled dam are discussed and analyzed in term of dam crest,impervious body and dam slope and so on.Under the newest guidance of the regulation,the reasonable decision-making basis for seismic safety design and seismic reinforcement of 250m high concrete face rock-filled dam is provided quantitatively based on the sliding displacement,stress and deformation of impervious body and seismic deformation ratio at crest of dam and so on.
作者
朱凯斌
李红军
刘小生
赵剑明
ZHU Kaibin;LI Hongjun;LIU Xiaosheng;ZHAO Jianming(China institute of Water Resources and Hydropower Research,Beijing 100048,China)
出处
《自然灾害学报》
CSCD
北大核心
2018年第6期142-147,共6页
Journal of Natural Disasters
基金
国家重点研发计划项目(2017YFC0404905)
国家自然科学基金项目(51579033
51509272
51679264)
贵州省科技计划项目([2016]1154)~~
关键词
高面板堆石坝
极限抗震能力
坝坡稳定
防渗体
坝顶震陷率
high concrete face rock-filled dam
ultimate seismic capacity
slope stability
impervious body
seismic deformation ratio
