水利学报2017，Vol.48Issue(1)：78-85,8.DOI:10.13243/j.cnki.slxb.20160630
近断层脉冲型地震动作用下面板堆石坝的动力响应
Seismic response of a concrete-faced rockfill dam to near-fault pulse-like ground motions
摘要
Abstract
An increasing number of high rockfill dams are constructed and planned in the western region,and most of them are situated near the seismic fracture belt.With the increase of high dams,the probability of encountering near-field earthquake is increased,and the seismic response of dams to near-field ground motions should be studied urgently.In this paper,ten near-fault ground motions are selected from Jiji Earthquake occurred in Taiwan,and the numerical results of the dam under two types(pulse-like and non-pule) of earthquake records are compared,including acceleration,horizontal displacement of the rockfill and lop-direction tensile stress of the concrete face slab of concrete-faced rockfill dam(CFRD).It is pointed out that horizontal displacement of the rockfill and lop-direction tensile stresses to pulse-like near-fault ground motions are significantly greater than that to non-pulse ground motions.Meanwhile,pulse-like effect grow along with the increase of PGV/PGA(peak ground velocity/peak ground acceleration).Therefore,the special research should be done on the seismic response of a concrete-faced rockfill dam to pule-like ground motions.It is necessary to evaluate comprehensively the security and ultimate aseismic capacity of rockfill dams.关键词
近断层/脉冲型地震动/面板堆石坝/地震动响应Key words
near-fault/pulse-like ground motions/concrete-faced rockfill dam/seismic response分类
建筑与水利引用本文复制引用
邹德高,韩慧超,孔宪京,周扬..近断层脉冲型地震动作用下面板堆石坝的动力响应[J].水利学报,2017,48(1):78-85,8.基金项目
国家自然科学基金项目(51379028,51279025,51508071) （51379028,51279025,51508071）
新世纪优秀人才支持计划项目(NCET-12-0083) （NCET-12-0083）
