粗粒式应力吸收层路面结构设计与有限元分析
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摘要
依托柳南高速公路改扩建工程,并针对目前中外经常使用的砂粒式应力吸收层材料存在的问题,提出了一种既可充当路面结构层,又具有应力吸收层功能的粗粒式应力吸收结构层。通过对旧路面和主骨料空隙填充法(CAVF法)设计的粗粒式应力吸收层路面的结构进行有限元建模,分析两种结构的应力应变情况,得出了粗粒式应力吸收层能够有效吸收应力并减少反射裂缝的产生的结论。
Based on the problem of the reconstruction and expansion of the nangao highway,and the problem of the material of the sand grain stress absorbing layer used at home and abroad,a kind of coarse-grain stress absorbing layer structure was proposed which can be used as the pavement structure layer and the stress absorbing layer function. By using finite element modeling of the structure of the coarse grain stress absorbing layer pavement designed by the old pavement and cavf method,the stress strain of the two structures was analyzed,and the conclusion of the result of the coarse grain stress absorption layer can effectively absorb the stress and reduce the reflection crack.
Based on the problem of the reconstruction and expansion of the nangao highway,and the problem of the material of the sand grain stress absorbing layer used at home and abroad,a kind of coarse-grain stress absorbing layer structure was proposed which can be used as the pavement structure layer and the stress absorbing layer function. By using finite element modeling of the structure of the coarse grain stress absorbing layer pavement designed by the old pavement and cavf method,the stress strain of the two structures was analyzed,and the conclusion of the result of the coarse grain stress absorption layer can effectively absorb the stress and reduce the reflection crack.
引文
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12 薛文.重载作用下沥青路面设计方法研究[D].天津:河北工业大学,2002Xue Wen. The research of asphalt pavement design method under heavy load[D]. Tianjin:Hebei University of Technology,2002
2 余波,施晓强,王力.不同应力吸收层综合性能评价研究[J].公路交通科技,2015,32(8):34-38Yu Bo,Shi Xiaoqiang,Wang Li. Research on evaluating comprehensive performance of different stress absorbing layers[J]. Journal of Highway and Transportation Research and Development,2015,32(8):34-38
3 郑俊杰,阳晏. STRATA应力吸收层在我国的首次应用[J].公路交通科技,2003,20(3):19-22Zheng Junjie,Yang Yan. The first application of STRATA absorption system in China[J]. Journal of Highway and Transportation Research and Development,2003,20(3):19-22
4 王伯禹,廖卫东,陈拴发. SA MPa VE应力吸收层沥青结合料存储性能研究[J].交通科技,2011(3):73-76Wang Boyu,Liao Weidong,Chen Shuanfa. Research on storage performance of asphalt combined with material of SA MPa VE stress absorption interlayer[J]. Transportation Science and Technology,2011(3):73-76
5 苑瑞星,周燕,张凯,等.应力吸收层结合料流变特性研究[J].武汉理工大学学报,2013,35(6):65-69Yuan Ruixing,Zhou Yan,Zhang Kai,et al. Rheological properties research on modified asphalt of the stress absorbing layer[J]. Journal of Wuhan University of Technology,2013,35(6):65-69
6 王慧民.应力吸收层橡胶沥青混合料的路用性能[J].筑路机械与施工机械化,2012,29(4):64-65Wang Huimin. Road performance of rubber asphalt mixture of stress absorbing layers[J]. Maintenance Machinery and Construction Technology,2012,29(4):64-65
7 石鑫.新型橡胶沥青应力吸收层设计研究[J].筑路机械与施工机械化,2011,28(10):54-56Shi Xin. Study on design of new rubber asphalt stress absorbing layer[J]. Maintenance Machinery and Construction Technology,2011,28(10):54-56
8 蔡燕霞.橡胶沥青应力吸收层结构行为与路用性能研究[D].西安:长安大学,2016Cai Yanxia. Research on the structure behavior and road performance of rubber asphalt stress absorbing layer[D]. Xi'an:Chang'an University,2016
9 张肖宁,王绍怀,吴旷怀,等.沥青混合料组成设计的CAVF法[J].公路,2001(12):17-21Zhang Xiaoning,Wang Shaohuai,Wu Kuanghuai. CAVF method of asphalt mixture composition design[J]. High Way,2001(12):17-21
10 吴旷怀,张肖宁.沥青混合料设计的主骨料空隙体积填充法研究及应用[J].公路工程,2004,29(2):58-61,64Wu Kuanghuai,Zhang Xiaoning. Coarse aggregate void-filling method for asphalt mixture design[J]. Highway Engineering,2004,29(2):58-61,64
11 王鹏,李昆,黄卫东.基于有限元方法的应力吸收层延缓反射裂缝分析[J].公路工程,2011,36(3):54-60Wang Peng,Li Kun,Huang Weidong. Analysis on the anti-crack performance of asphalt pavement based on finite method[J]. Highway Engineering,2011,36(3):54-60
12 薛文.重载作用下沥青路面设计方法研究[D].天津:河北工业大学,2002Xue Wen. The research of asphalt pavement design method under heavy load[D]. Tianjin:Hebei University of Technology,2002