全预制悬臂式挡土墙结构设计与受力分析  

Study on Structural Design and Force Analysis of Fully Prefabricated Cantilever Retaining Wall

作　　者：张磊 宋军[3] 杨化庆 廖振华 刘宏山 ZHANG Lei;SONG Jun;YANG Huaqing;LIAO Zhenhua;LIU Hongshan(Guangdong Provincial Expressway Development Co.,Ltd.,Guangzhou Guangdong 510623,China;China Railway 25th Bureau Group Corporation Limited,Guangzhou Guangdong 510100,China;Tongji University College of Civil Engineering,Shanghai 200092,China)

机构地区：[1]广东省高速公路有限公司,广东广州510623 [2]中铁二十五局集团有限公司,广东广州510100 [3]同济大学土木工程学院,上海200092

出　　处：《广东公路交通》2024年第5期35-39,共5页Guangdong Highway Communications

基　　金：广东省科技厅计划项目“高速公路改扩建工程快速安全建设关键技术研究”(2021B1111610002)。

摘　　要：为提高挡土墙的结构整体性和施工便捷化水平,本文提出了一种全预制悬臂式挡土墙结构,通过现场试验、有限元模拟分析了其受力性能。结果表明,在施工阶段和正常使用阶段,挡土墙均处于弹性阶段,面板顶部水平位移不超过3mm,具有较好的承载性能与安全性;现场试验与有限元模拟得出的荷载-位移曲线变化规律基本一致,都呈现出弹性阶段、带裂缝工作阶段与结构极限阶段;构件失效时,极限荷载值为818.8kN,对应的水平位移值为45.78mm;通过现场试验与有限元模拟数据的对比,验证了有限元模拟的准确性。In order to improve the structural integrity and construction convenience of retaining wall,a fully prefabricated cantilever retaining wall structure was proposed in this paper.Its mechanical performance was analyzed by field tests and finite element simulations.The research results showed that during the construction stage and the normal use stage,the retaining wall remains in the elastic stage,with the horizontal displacement of the top panel not exceeding 3mm,indicating a good bearing performance and safety.The load-displacement curves obtained by field test and finite element simulation show basically the same trend,displaying the elastic stage,the working stage with cracks and the structural limit stage.When the component failed,the ultimate load value was 818.8kN with a corresponding horizontal displacement value of 45.78mm.The field test data result verifys the accuracy of the finite element simulation.

关 键 词：全预制 悬臂式挡土墙 足尺试验 受力特点 

分 类 号：U417.112[交通运输工程—道路与铁道工程]