Journal of Hebei University of Water Resources and Electric Engineering

Journal of Hebei University of Water Resources and Electric Engineering ›› 2023, Vol. 33 ›› Issue (2): 1-6.DOI: 10.16046/j.cnki.issn2096-5680.2023.02.001

• Geotechnical Engineering Column •     Next Articles

Study on Dynamic and Static Mechanics and Fatigue Life of Flexible Pavement Structure

WANG Lei1, WANG Zi-kun2, SONG Yang3,4, XIN Yuan-yuan3,4, ZHANG Xue-qiang3, YU Nan5   

  1. 1. Beijing Zhongjiao Road Bridge North China Engineering Co., Ltd., 101100, Beijing, China;
    2. Department of Automotive Engineering, Hebei Petroleum University of Technology, 067000, Chengde, Hebei ,China;
    3. Department of Traffic Engineering,Hebei University of Water Resources and Electric Engineering,061001,Cangzhou,Hebei,China;
    4. Hebei Key Laboratory of Geotechnical Engineering Safety and Deformation Control,061001,Cangzhou,Hebei,China;
    5. School of Civil Engineering,Hebei University of Engineering,056038,Handan,Hebei,China
  • Received:2023-03-13 Revised:2023-03-31 Online:2023-06-30 Published:2023-10-26

柔性路面动静模量力学响应及疲劳寿命研究

王磊1, 王子坤2, 宋杨3,4, 辛媛媛3,4, 张学强3, 于楠5   

  1. 1.中交路桥华北工程有限公司,北京市通州区河滨路1号 101100;
    2.河北石油职业技术大学汽车工程系,河北省承德市双桥区冯营子镇学院路2号 067000;
    3.河北水利电力学院交通工程系,河北省沧州市黄河西路49号 061001;
    4.河北省岩土工程安全与变形控制重点实验室,河北省沧州市黄河西路49号 061001;
    5.河北工程大学土木工程学院,河北省邯郸市太极路19号 056038
  • 通讯作者: 宋 杨(1982-),男,河北沧州人,博士,教授,主要从事交通岩土方面研究。E-mail:songyang@hbwe.edu.cn
  • 作者简介:王 磊(1998-),男,河北承德人,学士,道路桥梁与渡河工程专业。E-mail:1529860016@qq.com
  • 基金资助:
    国家自然科学基金项目(51978237);河北省高等学校科研重点项目(ZD2021068);河北省大学生科技创新能力培育专项项目(22E50398D)

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Abstract: In order to study the stress response and fatigue life of flexible base asphalt pavement structure, based on the elastic layered system theory, bisar3. 0 calculation software calculates the mechanical response of typical pavement structure, summarizes the calculation data by adjusting the modulus of each structural layer, and analyzes the influence of dynamic and static mechanics on pavement design indexes. The results show that the change of dynamic and static mechanics is an important factor affecting the flexible pavement. With the increase of vehicle wheel set and modulus, the number of axle load actions of the design index decreases, and the fatigue life of the pavement decreases gradually. Therefore, the influence of dynamic and static mechanical changes should be fully considered in road design and construction, so as to lay a foundation for the implementation of flexible pavement in China.

Key words: flexible pavement, pavement structure, modulus, fatigue life, design index

摘要： 为了研究柔性基层沥青路面结构应力响应及疲劳寿命,依据弹性层状体系理论,利用BISAR3.0计算软件对典型路面结构的力学响应进行计算,通过调整各结构层模量,将计算数据进行汇总,分析动静模量对路面设计指标的影响。结果表明,动静模量变化是影响柔性路面的重要因素,随着车辆轮组和模量的增加,设计指标的轴载作用次数减小,路面疲劳寿命逐渐减少。因此,在道路设计施工时要充分考虑到动静力学变化的影响,为柔性路面在我国实施奠定基础。

关键词: 柔性路面, 路面结构, 模量, 疲劳寿命, 设计指标

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