锚定板极限承载力影响因素分析  

Analysis of Influence Factors on Anchor Sheeting Ultimate Bearing Capacity

作　　者：解全一 张宏博[1,2] 岳红亚 马源[1,2] 李信[1,2] 

机构地区：[1]山东大学土建与水利学院,济南市250061 [2]山东省路基安全工程技术研究中心,济南市250061

出　　处：《公路》2016年第7期8-12,共5页Highway

基　　金：国家自然科学基金;项目编号51208284;山东省科技发展计划;项目编号2013GSF11603

摘　　要：为了研究锚定板极限承载力的影响因素,通过制作模型对其进行了室内模型试验,根据室内试验的结构和材料参数建立了数值计算模型,并将两者的结果进行了对比验证。研究表明:(1)数值计算结果与室内模型试验结果的吻合度较高,可以用于其他工况的研究分析;(2)锚定板的边长和填料的内摩擦角是影响锚定板极限承载力的主要因素,其次为锚定板的埋设深度、锚定板的形状、填料的黏聚力,而填料的密度和弹性模量的影响极小;(3)推荐以增大锚定板边长和采用内摩擦角较大的砂性土作为填料的方式来提高锚定板的极限承载力。In order to study the factors affecting the ultimate bearing capacity of anchor sheeting, indoor model test is carried out by models, and in the meantime numerical calculation model is established based on the structure and material parameters of indoor test, and the results are compared. The results show. （1） the results from the numerical calculation and those from indoor model test results have high goodness of fit, and can be used for other working condition analysis （2） anchor sheeting length and filler＇s angle of internal friction is the main factor that influence the ultimate bearing capacity of anchor sheeting, followed by anchor sheeting of buried depth, the shape of the anchor sheeting and cohesion of filler, the density and elasticity modulus of filler has minimal effect and （3） it is recommended that increase the length of anchor sheeting and use sand soil of larger angle of internal friction to improve the ultimate bearing capacity of the anchor sheeting.

关 键 词：挡土墙 锚定板 极限承载力 数值模拟 室内模型试验 影响因素 

分 类 号：U417.116[交通运输工程—道路与铁道工程]