水利水电科技进展2026，Vol.46Issue(3)：51-57,7.DOI:10.3880/j.issn.1006-7647.2026.03.007
深厚覆盖层上面板坝加速度响应空间分布特性研究
Study on spatial distribution characteristics of acceleration response of CFRD on deep overburden
摘要
Abstract
To gain a deeper understanding of the dynamic effects of concrete-faced rockfill dam(CFRD)on deep overburden in seismically active regions,seismic response analyses of CFRDs on deep overburden were conducted using a three-dimensional wave propagation analysis method that accounts for the dynamic interaction between the dam,overburden,and foundation,considering key factors such as valley width,overburden characteristics,and ground motion properties.The results show that edge effects near the abutments induce relatively large acceleration responses at dam crest regions in the vicinity of both abutments.The high-frequency filtering effect of the deep and soft overburden attenuates the acceleration at the dam crest in the valley section.Under strong seismic loading,the reduction in soil modulus and increase in damping further reduce the acceleration response at the dam crest in the valley dam segment.The local areas near the dam crest close to the abutments are identified as potential weak areas in terms of slope sliding stability,for which targeted reinforcement measures are recommended.关键词
面板坝/深厚覆盖层/动力响应/抗震设计Key words
CFRD/deep overburden/dynamic response/seismic design引用本文复制引用
邹德高,唐川,屈永倩,冉从勇..深厚覆盖层上面板坝加速度响应空间分布特性研究[J].水利水电科技进展,2026,46(3):51-57,7.基金项目
国家重点研发计划项目(2024YFF1702002) （2024YFF1702002）
大连理工大学基本科研业务费项目(DUTZD25101) （DUTZD25101）
