反复荷载作用下级配砂砾石基层的力学性能分析  

Mechanical characteristics of grade sand-gravel base course under cyclic loading

作　　者：梅迎军[1] 梁乃兴[1] 

机构地区：[1]重庆交通学院,重庆400074

出　　处：《重庆交通学院学报》2003年第2期54-57,共4页Journal of Chongqing Jiaotong University

摘　　要：根据三轴试验及抗压强度试验所得的数据和试验后试样破坏情况,分析了级配砂砾石在反复荷载作用下的变形特性,并从能量势的角度提出砂砾石基层的塑性变形可分为永久变形和似弹性变形,这一分析对考虑基层的变形有很大意义.According to the dates and wreck samples that were obtained from triaxial test and CBR test,this paper analyses the deformation characteristics of grade sandgravel base course under cyclic loading.At the same time from the view of energy put out that the deformation of sandgravel base course can assumed the two fellowing:one is elasticity deformation,the other is similarity elasticity deformation.This ansys is very useful when consider the deformation of sandgravel base course.

关 键 词：反复荷载作用 级配砂砾石 力学性能 稳定性 剪胀剪缩 散粒体 路面基层 塑性变形 

分 类 号：U416.213[交通运输工程—道路与铁道工程]