摘要
本文提出一种新型装配扶壁式挡土墙结构,并研究其受力性能。通过ABAQUS有限元软件对不同键槽尺寸、键槽间距、扶壁墙高度、扶壁墙厚度的该结构在土压力作用下进行数值计算分析。研究发现该挡土墙结构的最优键槽尺寸为:键槽深度为50mm、宽度和间距均为180mm。在静止土压力作用下,采用最优键槽尺寸的挡土墙仅在预制扶壁墙底端的键槽处出现轻微的应力集中和损伤,但整体受力性能良好;整个墙体位移和变形均很小,满足工程设计要求;装配与现浇挡土墙极限承载力比较接近,该新型装配扶壁式钢筋混凝土挡土墙的安全性满足要求。
In this paper,a new type of assembled buttress retaining wall structure was proposed,and its mechanical performance was studied.The finite element software ABAQUS was used to calculate and ana-lyze the structure with different keyway dimensions,keyway spacing,buttress wall height and buttress wall thickness under earth pressure.The study found that the optimum keyway size of the retaining wall was 50mm in depth,180mm in width and 180mm in spacing.Under the static earth pressure,the retaining wall with the optimum keyway size had only slight stress concentration and damage at the keyway at the bot-tom end of the prefabricated retaining wall,while the overall mechanical performance behaved very well.The displacement and deformation of the whole wall was small enough to meet the requirements of engineer-ing design.The ultimate bearing capacity of precast concrete buttress retaining wall is close to that of cast-in-place concrete retaining wall,which testifies the safety of this new type of assembled retaining wall meets the requirements.
作者
刘海成
成斌
Liu Haicheng;Cheng Bin(School of Civil Engineering,Shenyang Jianzhu University,110168,China)
出处
《特种结构》
2024年第1期54-60,共7页
Special Structures
基金
国家自然科学基金(52078310)。
关键词
装配扶壁式挡土墙
键槽尺寸
预制扶壁墙
极限承载力
Assembled buttress retaining wall
Keyway dimensions
Precast buttress wall
Ultimate bearing capacity
