期刊论文

Li, Sheng(lishengttt@163.com)

中文

中南大学学报(自然科学版)

1672-7207

2016

47

3

1065-1070

10.11817/j.issn.1672-7207.2016.03.046

湖南省自然科学基金资助项目(14JJ7041)； 湖南省教育厅科学研究项目(14B001)； 公路养护技术国家工程实验室开放基金资助项目(kfj150102)~~；

本校为第一且通讯机构

针对刚性基层沥青路面结构的特点和现有研究的不足,运用损伤力学理论和数值仿真法,并结合对实体工程的观测,研究刚性基层沥青路面沥青层的破坏行为与机理。研究结果表明:刚性基层沥青路面的车辙深度随荷载作用次数的增加而增加,但增加幅度随作用次数的增加不断减小,且车辙深度比其他路面结构的小;在沥青层表面以下1/5厚度左右处及接缝附近的沥青层底面易出现剪切疲劳损伤,建议沥青层的厚度不宜太薄,应在接缝处采取一定的抗裂措施。沥青层的纵向裂缝主要集中在行车道轮迹带附近,部分横向裂缝也仅从表面向下延伸2 cm左右,这些裂缝均为Top-Down裂缝。连续配筋混凝土板上沥青层有少量反射裂缝和Top-...

Based on the structure characteristics and the deficiencies of the existing studies of rigid base asphalt pavement, the theories of damage mechanics and simulation method were used to analyze the damage behavior and mechanism of the rigid base asphalt pavement, and the entity engineerings were observed and analyzed. The results show that the rutting deformation of rigid base asphalt pavement increases with the increase of load times, but the increase amplitude decreases continuously, and the rutting deformation is smaller than that of other structure. The asphalt layer of which is below the su...