河南城建学院学报2018，Vol.27Issue(3)：33-37,5.DOI:10.14140/j.cnki.hncjxb.2018.03.006
交通荷载作用下土质边坡的动力响应分析
Analysis of dynamic response of soil slope under traffic load
摘要
Abstract
In order to study the dynamic response rule of embankment slope under the vibration of high speed train,the dynamic numerical analysis model of slope was established by FLAC3D finite difference software. The results show that under the action of train vibration,the maximum principal stress of the whole slope is the compressive stress,and the stress in the slope is concentrated,and the shearing stress of the slope is concen-trated on the slope surface.The closer the horizontal displacement and vertical displacement of the monitoring points on slope,the more sensitive the dynamic response.The horizontal displacement and vertical displace-ment of the same measuring point have a positive linear correlation with the time.The vertical displacement is larger than the horizontal displacement;Once the train pass has little influence on the stability of the slope, but when the vibration effect accumulates,the stability of the slope will be seriously threatened,especially the slope's body,foot and slope surface may be more serious.When the vibration effect reaches the bearing limit of the slope,the slope will lose its stability.The research results have certain theoretical significance and engi-neering application value for evaluating the influence of train vibration on slope rock and soil mass.关键词
边坡/列车振动/有限元分析/动力响应Key words
slope/train vibration/finite element analysis/dynamic response分类
交通工程引用本文复制引用
王亚冲,胡辰风..交通荷载作用下土质边坡的动力响应分析[J].河南城建学院学报,2018,27(3):33-37,5.基金项目
国家自然科学基金(41272285) （41272285）
