%0 Journal Article
%T 重载作用下典型沥青路面结构疲劳寿命分析<br>Fatigue Life Analysis of Typical Asphalt Pavement Structure under Heavy Load
%A 徐希忠
%A 张新
%A 张晓萌
%A 季正军
%A 符东绪
%J Material Sciences
%P 201-208
%@ 2160-7621
%D 2021
%I Hans Publishing
%R 10.12677/MS.2021.113026
%X 为分析比较半刚性基层、组合式基层和倒装式基层3中典型路面结构在重载作用下的疲劳寿命，本文基于ABAQUS有限元程序，建立了三种典型路面结构模型，计算了典型路面结构在重载作用下的力学响应，评价了三种路面结构的疲劳性能和疲劳寿命，同时根据各路面结构基层层厚对路面结构疲劳寿命的影响，得出了级配碎石和大粒径透水材料(LSPM)的合理厚度。结果表明级配碎石基层和大孔径透水材料(LSPM)基层比传统半刚性基层拥有更好的抗疲劳开裂性能。级配碎石基层的合理厚度为15~18 cm，LSPM的厚度不应超过15 cm。<br />
In order to analyze and compare the fatigue life of three typical pavement structures under heavy load, which are semi-rigid base, combined base and inverted base, three typical pavement structure models are established based on ABAQUS finite element program, and the mechanical response of typical pavement structure under heavy load is calculated. The fatigue performance and fatigue life of three kinds of pavement structures are evaluated, and the reasonable thickness of graded crushed stone and large particle size permeable material (LSPM) is obtained according to the influence of the base layer thickness of each pavement structure on the fatigue life of pavement structure. The results show that graded crushed stone base and LSPM base have better anti fatigue cracking performance than traditional semi-rigid base. The reasonable thickness of graded crushed stone base is 15~18 cm, and the thickness of LSPM should not exceed 15 cm.&nbsp;
%K 典型路面结构，半刚性基层，疲劳寿命，数值模拟，合理厚度<br>Typical Pavement Structure
%K Semi-rigid Base
%K Fatigue Life
%K Numerical Simulation
%K Reasonable Thickness
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=41078