华东交通大学学报2016，Vol.33Issue(3)：23-28,6.
柔性基层模量及厚度对倒装式路面结构受力影响分析
Mechanical Analysis on Influence of Flexible Base Modulus and Thickness on Inverted Pavement Structure
王为义 1陈景雅 1吴菲 1王健1
作者信息
- 1. 河海大学土木与交通学院，江苏 南京 210098
- 折叠
摘要
Abstract
In order to research the influence of flexible base parameters on inverted structure pavement, the study used ABAQUS software to establish a three-dimensional pavement structure model and analyzed mechanical properties of asphalt pavement structure with different flexible base modulus and thickness. Calculation results showed that increasing thickness of flexible base could reduce road surface deflection and decrease stress of se-mi-rigid base layer tensile at the bottom, but had adverse effects on tensile stress of asphalt layer at the bottom and the fatigue life of the pavement; thickness of flexible base had less effects on shear stress in surface layer;increasing modulus of flexible base was beneficial to the mechanical indexes of pavement. Through comprehen-sive analysis of various indicators, the study concluded that a reasonable modulus of flexible base was from 450 to 500MPa and a reasonable thickness of the flexible base was from 10 to 15cm.关键词
倒装式/有限元/模量/厚度/力学分析Key words
inverted structure/finite element/modulus/thickness/mechanical behavior分类
交通工程引用本文复制引用
王为义,陈景雅,吴菲,王健..柔性基层模量及厚度对倒装式路面结构受力影响分析[J].华东交通大学学报,2016,33(3):23-28,6.
