科技创新与应用2026，Vol.16Issue(23)：7-11,16,6.DOI:10.19981/j.CN23-1581/G3.2026.23.002
半刚性基层与ATB柔性基层沥青路面力学响应和寿命预测
姜迪 1燕凌 2何志飞 3费瀚翔3
作者信息
- 1. 北京交科公路勘察设计研究院有限公司,北京 100191
- 2. 中路高科交通检测检验认证有限公司,北京 100089
- 3. 长安大学 公路学院,西安 710064
- 折叠
摘要
Abstract
To investigate the service life of flexible-base asphalt pavements,this study compares the mechanical responses and service lives of an ATB-40 flexible-base asphalt pavement with those of a conventional semi-rigid-base asphalt pavement.The results show that the ATB-40 flexible base significantly reduces the tensile stress at the bottom of the semi-rigid layer:for a semi-rigid sub-base plus ATB configuration the stress is only 0.105 MPa,whereas the traditional semi-rigid base reaches 0.186 MPa.The overall fatigue life of the ATB-40 system outperforms that of the semi-rigid base;the fatigue life of the semi-rigid sub-base plus ATB structure attains 2.21×1011 strain cycles,far exceeding the 5.96×108 strain cycles of the conventional semi-rigid structure.Moreover,the ATB-40 system is sensitive to thickness increases,and thickening yields remarkable benefits.The ATB-40 flexible structure with a semi-rigid sub-base effectively eliminates the risk of reflective cracking and substantially extends the pavement service life.关键词
道路工程/柔性基层/半刚性基层/力学响应/寿命预测Key words
pavement engineering/flexible base/semi-rigid base/mechanical response/service life prediction分类
交通工程引用本文复制引用
姜迪,燕凌,何志飞,费瀚翔..半刚性基层与ATB柔性基层沥青路面力学响应和寿命预测[J].科技创新与应用,2026,16(23):7-11,16,6.
