模拟了基质沥青路面和高模量沥青路面在高温温度场下的蠕变,借助有限元软件(COMSOL)引入温度场和受温度诱导的蠕变模型,对基质沥青混凝土路面和HMAC(高模量沥青混凝土)路面进行热辐射和固体力学耦合作用,分析对比其在车辆荷载作用下的永久变形,研究外界环境温度、太阳辐射和车轮荷载等因素对路面车辙变形发展的影响,能够对路面车辙深度进行精确地预估,研究分析车辙产生的蠕变变形,针对路面车辙提出合理的防治措施,减小路面永久变形,为路面的材料选择和结构优化提供参考价值,延长沥青路面使用寿命.
This paper simulates the creep of matrix asphalt pavement and high modulus asphalt pavement under high temperature field. With the help of COMSOL software, temperature field and temperature induced creep model are introduced to conduct thermal radiation and solid mechanics coupling effect on matrix asphalt concrete pavement and HMAC pavement. The permanent deformation of matrix asphalt concrete pavement and HMAC pavement is analyzed and compared under vehicle load. The influence of external environment temperature, solar radiation and vehicle load on the development of rutting deformation is studied. It can accurately predict the depth of pavement rutting, study and analyze the creep deformation caused by rutting, put forward reasonable prevention measures for pavement rutting, reduce the permanent deformation of pavement, provide reference value for pavement material selection and structure optimization, and extend the service life of asphalt pavement.
[1] 刘攀,李志斌,徐铖铖,等.一种基于不良天气条件的快速道路可变限速控制方法:中国,CN102568226A[P].2012-07-11.
[2] 张德根,赵敏福,赵江东.基于Comsol Multiphysics电极电位分布的仿真研究[J].池州学院学报,2017,31(3):48-49. DOI:10.13420/j.cnki.jczu.2017.03.0017
[3] 毛笑笑,周开发.COMSOL在土木工程多物理场问题中的应用前景[J].智能城市,2017(1):36-37. DOI:10.19301/j.cnki.zncs.2017.01.023
[4] 吕伟民.沥青混合料设计原理与方法[M].上海:同济大学出版社,2001
[5] 夏明江.高模量沥青混合料应用综述[J].城市道桥与防洪,2013(6):254-256. DOI:10.16799/j.cnki.csdqyfh.2013.06.077
[6] 董侨,倪富健,顾兴宇.AC+CRCP复合式路面温度场有限元分析[J].东南大学学报(自然科学版),2006,36(5):805-809. DOI:10.3321/j.issn:1001-0505.2006.05.025.
[7] 王厚华.传热学[M].重庆:重庆大学出版社,2006
[8] 张维全,谢巧,刘继忠.云南高海拔地区不同沥青路面结构温度场研究[J].交通运输研究,2010(17):157-161. DOI:10.3869/j.issn.1002-4786.2010.09.018
[9] 乔自磊,钱欣童.沥青混凝土物性参数特性研究[J].河南科技,2014(12):71. DOI:10.3969/j.issn.1003-5168.2014.12.047
[10] 禹朝帅.高温金属材料蠕变疲劳及三维裂纹分析[D].大连:大连理工大学, 2013.
[11] 陈苏,陈国佳.基于时间硬化模型的路面车辙预估分析[J].公路工程,2013, 38(1):195-198.
[12] HUA J F. Finite element modeling and analysis of accelerated pavement testing devices and rutting phenomenon[D]. West Lafayette, Indiana, USA: Purdue University, 2000.
[13] 王孙富.沥青路面结构温度场与温度应力的数值模拟分析[D]. 哈尔滨:哈尔滨工业大学, 2010.
[14] 宋存牛,王选仓,赵光海.沙漠地区典型沥青混凝土路面结构温度场的仿真分析[J].公路, 2005(11):106-111. DOI:10.3969/j.issn.0451-0712.2005.11.024
[15] 韩瑞民,弥海晨.农村公路薄层水泥混凝土路面的研究[J].公路,2006(8):49-52. DOI:10.3969/j.issn.0451-0712.2006.08.012
