底基层特性对路面结构力学性能的影响性分析  

THE ANALYSIS OF THE IMPACT OF THE SUBBASE CHARACTERISTICS TO THE ROAD STRUCTURE

作　　者：刘俊芳[1] 李永[1] 苏跃宏[1] 

机构地区：[1]内蒙古工业大学,呼和浩特010058

出　　处：《内蒙古农业大学学报（自然科学版）》2015年第6期113-119,共7页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

基　　金：内蒙古工业大学校级基金(zs201011)

摘　　要：本文应用有限元软件分析了底基层特性对路面结构弯沉及层底拉应力,剪应力的影响,为路面结构的设计提供了理论依据。分析结果表明,底基层对路面结构力学特性有一定的影响,具体表现在:(1)底基层厚度在36cm以上即双层底基层时,基层层底拉应力较小,并且可以有效控制路面弯沉;(2)底基层模量较大时,底基层的层底拉应力会相对较大。In this paper,analyzed the impact of the sub- base characteristics to the pavement structure by the finite element software,this will be provide a theoretical basis for its widely used in the subbase. The results showed that the subbase have some influence on the mechanical properties of the structure of the road,semi- rigid base bunk subbase bottom layer tensile stress is small,and can effectively control surface deflection,and for the larger modulus of subbase,the subbase tensile stress will be relatively large.

关 键 词：底基层 路面结构 移动荷载 

分 类 号：TD853.34[矿业工程—金属矿开采]