中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2019, Vol. 38 ›› Issue (10): 50-55.DOI: 10.3969/j.issn.1674-0696.2019.10.08

• 道路与铁道工程 • 上一篇    下一篇

沥青混凝土路面装配式基层结构力学特性研究

孙建诚,鲍克端   

  1. (河北工业大学 土木与交通学院,天津 300401)
  • 收稿日期:2018-03-19 修回日期:2018-11-05 出版日期:2019-10-14 发布日期:2019-10-14
  • 作者简介:孙建诚(1969—),男,河北冀州人,副教授,博士,主要从事道路方面的研究。E-mail: sunjiancheng2000@126.com。

Mechanical Properties of Asphalt Concrete Pavement Assembly Type Base Structure

SUN Jiancheng, BAO Keduan   

  1. (School of Civil Engineering & Traffic, Hebei University of Technology, Tianjin 300401, P. R. China)
  • Received:2018-03-19 Revised:2018-11-05 Online:2019-10-14 Published:2019-10-14

摘要: 沥青混凝土路面装配式基层结构相比传统的沥青路面结构具有环保、快速和经济等优点。为了深入研究沥青混凝土路面装配式基层结构的力学特性,运用ABAQUS有限元软件,研究了预制板块的边长、厚度、弹性模量对基层底部力学行为的影响。结果表明:当预制板块边长在1~2 m范围内,约为1.4 m时,装配式沥青混凝土路面基层结构基层底部最大竖向应变值最小;在一定范围内,预制板块的厚度和模量对基底最大竖向应变值的影响并不大;预制板块边长对基底应力行为的影响程度大于预制板块厚度和弹性模量的影响。

关键词: 道路工程, 装配式基层结构, 有限元, 力学分析, 尺寸效应

Abstract: Compared with the traditional asphalt pavement structure, the asphalt concrete pavement assembly type base structure has the advantages of environmental protection, high-speed and economy. In order to deeply study the mechanical properties of asphalt concrete pavement assembly base structure, ABQUS finite element software was used to study the influence of the length, thickness and elastic modulus of the precast plate on the mechanical behavior of the base. The research results show that when the side length of prefabricated plate within the scope of the 1 m to 2 m and the side length is 1.4 m, the maximum vertical strain at the bottom of the base course of the assembled asphalt concrete pavement structure is minimal. Within a certain range, the thickness of the prefabricated plate and the modulus of the prefabricated plate have little effect on the maximum vertical strain value of the substrate. The side length of the prefabricated plate has a greater influence on the stress behavior of the substrate than the thickness and elastic modulus of the prefabricated plate do.

Key words: highway engineering, assembly type base structure, the finite element, mechanics analysis, size effect

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