加筋土挡墙的抗震性能研究现状  

Research Status on Seismic Resistance of Reinforced Soil Retaining Walls

作　　者：黄雨[1] 郑虎[1] 孙启登[1] 

机构地区：[1]同济大学地下建筑与工程系,岩土及地下工程教育部重点实验室,上海200092

出　　处：《工程抗震与加固改造》2010年第5期107-111,124,共6页Earthquake Resistant Engineering and Retrofitting

基　　金：国家自然科学基金资助项目(40841014);上海市曙光计划资助项目(08SG22);上海市重点学科建设项目(B308)

摘　　要：首先,简述了加筋土挡墙比天然地基及普通挡土墙具有更好的抗震性能,对加筋土挡墙抗震性能的主要影响因素进行了综述,包括:筋材长度和筋材层间距、回填土性质、地震系数等。同时也指出,加筋土挡墙在地震烈度较大时也会发生破坏。最后,根据对加筋土挡墙抗震性能研究的结果指出,可以通过进一步的研究来定量评价加筋土挡墙的抗震能力,同时了解地震过程中的筋土耦合问题,综合考虑水平地震加速度(ah)和竖向地震加速度(av)对加筋土抗震性能的影响。Since reinforced soil retaining walls have been widely applied in geotechnical engineering field,the seismic resistance of reinforced soil retaining walls has been paid high attention to.Firstly,the seismic behavior of reinforced soil retaining walls is presented.Though the seismic behavior of reinforced soil retaining walls is much better than that of the natural foundation,ordinary soil retaining walls,reinforced earth retaining walls would be damaged too when reinforced earth retaining walls suffer from high-intensity seismic loading.Such influencing factors of the seismic resistance of reinforced soil retaining walls as the length of reinforcement,the vertical spacing of reinforcement,the properties of backfill soil and seismic coefficient are introduced respectively.Finally,conclusion is drawed that the seismic intensity of reinforced soil retaining walls could be quantitatively evaluated based on the study of seismic behavior of reinforced soil retaining walls.The coupling of reinforcement-soil during the earthquake and the influence of ah and av’s to reinforced soil retaining walls are also considered.

关 键 词：加筋土挡墙 抗震性能 影响因素 抗震烈度 

分 类 号：TU476.4[建筑科学—结构工程] TU435[建筑科学—土工工程]