复杂动力作用下加筋土挡墙内部稳定性分析

英文篇名：Interior Stability Analysis of Reinforced Earth Retaining Wall under Complicated Dynamical Loads
中文刊名：中南公路工程
英文刊名：Journal of Central South Highway Engineering
作者：蒋建清 ; 邹银生
英文作者：JIANG Jianqing~1 ; ZOU Yinsheng~2(1.School of Civil Engineering ; Hunan City University ; Yiyang ; Hunan 413000 ; China ; 2.Institute of Structural Engineering ; Hunan University ; Changsha ; Hunan 410082 ; China)
中文关键词：加筋土挡土墙 ; 临界长度 ; 界限配筋率 ; 水平和竖向地震作用 ; 分析模型 ; 内部稳定性分析
英文关键词：reinforced earth retaining wall ; minimal length ; relative minimal reinforcement volume ratio ; horizontal and vertical seismic loads ; an analysis model ; interior stability analysis
出版日期：2007-02-20
机构：湖南城市学院土木工程学院,湖南大学结构工程研究所湖南益阳413000,湖南长沙410082
年：2007
期：01
出版单位：中南公路工程

摘要

从加筋土挡土墙的特殊受力机理出发,对水平和竖向地震同时作用下加筋土挡墙进行了内部稳定性分析;研究了挡墙破裂面形状与位置,结合国内外一系列室内和现场足尺试验资料而确立了地震作用下加筋土挡墙的分析模型;通过挡墙的筋带拉断破坏和筋土粘着破坏分析,分别推导了加筋带的界限配筋率和临界长度计算公式,这两个公式能适用于多种实际的荷载工况(静力荷载和地震荷载),公式计算结果与试验结果吻合良好,可为加筋土挡土墙工程抗震设计及动力分析提供一定参考。
Based on the special mechanism of reinforced earth retaining wall,this paper introduces the interior stability theory of reinforced earth retaining wall under horizontal and vertical seismic loads.The shape and location of the failure surface of retaining wall is also studied.Be based upon a series of laboratory experimentations and field examinations,this paper establishs an unified analysis model in order to analyse reinforced retaining wall under seismic loads.Through the analysis of the rupture of reinforced bar and its adhesive invalidation,formulas about the relative minimal reinforcement volume ratio and the minimal reinforcement length are deduced,respectively.The two formulas are applicable to various load cases(static load case and seismic load case),the results are in accord with experimentation results well.Therefore,they can give a reference for practical reinforced earth retaining wall designs and its dynamical analysis.

引文

[1]Schlosser F.Juran J.Behaviour of Reinforced Earth Retai-ning Wall Form Model Studies,Chapter 6[Z].Develop-ments in Soil mechanics and foundation Model Studies,1983.
    [2]时钟伦,陈明德.加筋土挡墙室内模型试验研究[J].铁道标准设计通讯,1988,(3):25-29.
    [3]孙遇祺,梁波,杨有海.加筋土挡墙的筋条临界长度.兰州铁道学院学报[J],1990,9(3):1-8.
    [4]杨明,吴德伦,言志信.加筋土挡墙抗震分析中的屈服加速度[J].岩石力学与工程学报,2002,21(5):728-731.
    [5]Richardson,G.N.and Lee,K.L.Seismic Design of Rein-forced Earth Walls[J].Journal of the Geotechnical Engi-neering Division,Volume 101,No.GT—2,ASCE,1975,167-188.
    [6]Christoper Burke,Hole I.Ling and Huabei Liu.SeismicResponse Analysis of a Full-Scale Reinforced Soil Retai-ning Wall[A].17th ASCE Engineering Mechanics Confer-ence[C].University of Delaware,Newark,DE,2004,13-16.
    [7]Sun yuqi,Xiong Zhenghong,Den Rongji.Some Problems onReinforced Clay[A].Proceedings of International Sympo-sium on Geomechanics Bridges and Structures[C].Lanzhou,China,1997.
    [8]张师德,吴邦颖.加筋土结构原理及应用[M].北京:中国铁道出版社,1986.
    [9]杨有海.地震作用下加筋土挡土墙稳定性分析[J].兰州铁道学院学报(自然科学版),2002,21(4):9-11.
    [10]谢定义.土动力学[M].西安:西安交通大学出版社,1998.
    [11]刘高明.加筋土挡墙施工质量控制[J].湖南交通科技,2004,30(3):89-90.