土体滑移对被动加载型锚杆的影响分析.pdf
文档页数：3文档大小：1.05MB文档格式：pdf工技术 2015年10月上 78 CONSTRUCTION TECHNOLOGY第44卷第19期 do:10.7672/sgjs2015190078 土体滑移对被动加载型锚杆的影响分析* 张伟王政程佳佳 (1.河南科技大学土木工程学院,河南洛阳471023;2.天津大学管理与经济学部,天津300073) 摘要]以被动加载型锚杆为研究对象,建立了关于锚杆和土壤的力学模型,研究了土体滑移对锚杆造成的影响。 用ANSYS 对选取的锚杆和足够大区域土体进行分析,采用弹簧单元Spring -damperl 14来模拟外界土体和该区域之 间的联系,并选取Drucker -Prager 材料模型来描述土体的本构关系研究结果表明,当锚杆受到沿锚杆垂线方向移 动的土体作用时,位移变形是不均匀的,最大位移变形处在杆的端部;应力分布沿杆长方向也是不均匀的,锚杆在 靠近端部位置剪应力达到最大值。 关键词]土体滑移锚杆被动加载模拟分析 [中图分类号]TD353.6 [文献标识码]A [文章编号】1002-8498(2015)19-0078-03 Analysis on the Influence of Soil Slip on Passive Loading AnchorZhang ,Wang Zheng' ,Cheng Jiajia( 1.School of Ciril Engineering ,He' nan Unirersity of Science and Technology ,Luoyang ,He'nan 471023 ,China : 2 .College of Management and Economics ,Tianjin Unirersity ,Tianjin 300073 ,China ) Abstract :This paper aimed to study passive loading anchor ,mechanical models of anchors and soil wereestablished .The influence of soil slip on anchors was studied .ANSYS software was selected to analyzeanchors and large enough area soil ,Spring-damperl4 element was used to simulate connections betweenoutside soil and this area .Drucker-Prager material model was used to describe constitutive relation ofsoil .The results sho...
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