[1]高俊启,魏路楠,鲁洪强.基于FBG的沥青混合料车辙横向应变分析[J].东南大学学报(自然科学版),2018,48(5):927-932.[doi:10.3969/j.issn.1001-0505.2018.05.021]
　Gao Junqi,Wei Lunan,Lu Hongqiang.Analysis on lateral strain of asphalt mixture rutting based on FBG[J].Journal of Southeast University (Natural Science Edition),2018,48(5):927-932.[doi:10.3969/j.issn.1001-0505.2018.05.021]
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基于FBG的沥青混合料车辙横向应变分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
48
期数:
2018年第5期
页码:
927-932
栏目:
交通运输工程
出版日期:
2018-09-20

文章信息/Info

Title:
Analysis on lateral strain of asphalt mixture rutting based on FBG
作者:
高俊启1; 魏路楠1; 鲁洪强2
1南京航空航天大学土木工程系, 南京 210016; 2青岛市市政工程设计研究院有限责任公司, 青岛 266101
Author(s):
Gao Junqi1;  Wei Lunan1;  Lu Hongqiang2
1Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2Qingdao Municipal Engineering Design Institute Co., Ltd., Qingdao 266101, China
关键词:
道路工程;  车辙;  沥青混合料;  横向应变;  FBG
Keywords:
road engineering;  rutting;  asphalt mixture;  transverse strain;  fiber Bragg grating(FBG)
分类号:
U416.217
DOI:
10.3969/j.issn.1001-0505.2018.05.021
摘要:
为了分析沥青混合料横向流动变形,设计了基于光纤光栅(FBG)技术的车辙试验,研究了沥青混合料表面轮迹外侧横向应变发展规律.结果表明,利用FBG研究沥青混合料车辙横向流动变形是可行的.随荷载作用次数的增加,试件表面各点横向应变逐渐增大,各位置横向应变的发展趋势相同,但应变变化率不同.废胶粉掺量为15%的沥青混合料车辙横向流动变形比掺量为18%和0%的沥青混合料发展更为缓慢;AC-13C废胶粉改性沥青混合料的高温抗车辙横向流动变形能力较AC-13F优越;在废胶粉和抗车辙剂的共同作用下,沥青混合料内部横向流动得到了极大缓解.横向应变发展规律可反映沥青混合料内部抵抗轮载间接传递的能力和集料在高温下的流动状态,并解释了沥青路面流动性车辙的发展规律.
Abstract:
To analyze the transverse flow deformation of asphalt mixture rutting, a rutting test based on fiber Bragg grating(FBG)technology was designed, and the development rule of the transverse strain on the surface of the asphalt mixture beside the rut was studied. The results show that using FBG to study the transverse flow deformation of asphalt mixture in rutting is feasible. With the increase of the loading cycle number, the transverse strains at the test points on the surface of the specimen increase gradually. The development trends of the transverse strain at test points are the same, but their change rates are different. The transverse flow deformation of asphalt mixture with 15% waste rubber powder is slower than those with 18% and 0% waste rubber powder. The ability of AC-13C asphalt mixture with waste rubber powder resisting to transverse flow deformation is superior to that of AC-13F mixture at high temperature. With the combined modification of the waste rubber powder and the anti-rutting agent, the internal transverse flow of the asphalt mixture is relieved to a great extent. The development rule of the lateral strain can reflect the ability of asphalt mixture to resist indirect transmission of the wheel load and the flow of aggregates at high temperature, and it can interpret the development rule of asphalt pavement flow rutting.

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备注/Memo

备注/Memo:
收稿日期: 2018-03-08.
作者简介: 高俊启(1973—),男,博士,副教授,junqi_gao@nuaa.edu.cn.
基金项目: 中国博士后科学基金资助项目(2013M541666)、江苏省博士后科研资助计划资助项目(1302138C).
引用本文: 高俊启,魏路楠,鲁洪强.基于FBG的沥青混合料车辙横向应变分析[J].东南大学学报(自然科学版),2018,48(5):927-932. DOI:10.3969/j.issn.1001-0505.2018.05.021.
更新日期/Last Update: 2018-09-20