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多孔沥青路面空隙衰变离散元模拟

Keywords: 道路工程,多孔沥青路面,离散元法,空隙衰变,温度

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Abstract:

?为了研究多孔沥青路面在不同温度条件下空隙结构的衰变规律,基于离散元软件PFC3D,根据实际级配建立多孔沥青混合料车辙板模型,通过动态蠕变试验拟合不同温度条件下的沥青砂浆Burger's模型参数,并代入离散元模型,将车辙试验荷载转化为均布荷载并通过伺服机制施加在模型中央,对不同温度条件下多孔沥青车辙板荷载响应进行了模拟。通过编写的程序,提取分析多孔沥青车辙板模型荷载作用前后的空隙结构。研究结果表明:离散元方法可以较好地模拟荷载作用后多孔沥青车辙板空隙率和有效空隙率的变化规律;温度低于30℃时,荷载对多孔沥青路面的影响较小;温度高于40℃时,荷载导致车辙板产生较为明显的应变,空隙率与有效空隙率明显下降。

References

[1]  ELVIK R,GREIBE P.Road Safety Effects of Porous Asphalt:A Systematic Review of Evaluation Studies[J].Accident Analysis & Prevention,2005,37(3):515-522.
[2]  CHEN Fei,ZHU Ya-zhou,YANG Jun,et al.Field Performance Assessment of Porous Asphalt Pavement Under Heavy Traffic on Yan-Tong Expressway in China[J].Journal of Testing and Evaluation,2012,40(7):1-6.
[3]  AL-RUBAEI A M,STENGLEIN A L,VIKLANDER M,et al.Long-term Hydraulic Performance of Porous Asphalt Pavements in Northern Sweden[J].Journal of Irrigation and Drainage Engineering,2013,139(6):499-505.
[4]  WANG Hai-nian,HUANG Zhi-han,LI Lei,et al.Three-dimensional Modeling and Simulation of Asphalt Concrete Mixtures Based on X-ray CT[J].Journal of Traffic and Transportation Engineering:English Edition,2014,1(1):55-61.
[5]  YOU Zhan-ping,LIU Yu,DAI Qing-li.Three-dimensional Microstructural-based Discrete Element Viscoelastic Modeling of Creep Compliance Tests for Asphalt Mixtures[J].Journal of Materials in Civil Engineering,2011,23(1):79-87.
[6]  LIU Yu,YOU Zhan-ping.Visualization and Simulation of Asphalt Concrete with Randomly Generated Three-dimensional Models[J].Journal of Computing in Civil Engineering,2009,23(6):340-347.
[7]  LIU Yu,DAI Qing-li,YOU Zhan-ping.Viscoelastic Model for Discrete Element Simulation of Asphalt Mixtures[J].Journal of Engineering Mechanics,2009,135(4):324-333.
[8]  MASAD E,BUTTON J.Implications of Experimental Measurements and Analyses of the Internal Structure of Hot-mix Asphalt[J].Transportation Research Record,2004,1891:212-220.
[9]  王鸿博.多孔沥青混凝土配制技术研究[D].南京:东南大学,2006. WANG Hong-bo.Research on Design for Porous Asphalt Concrete[D].Nanjing:Southeast University,2006.
[10]  MURALI-KRISHNAN J,RENGARAJU V R.Air Voids Reduction Phenomena of Asphalt Concrete-A Continuum Approach[J].International Journal of Fracture,1999,97(1):337-354.
[11]  常明丰.多孔沥青路面微观力学特性与空隙衰变行为研究[D].西安:长安大学,2009. CHANG Ming-feng.Study on the Micromechanical Characteristic and Void Reduction Behavior for Porous Asphalt Pavement[D].Xi'an:Chang'an University,2009.
[12]  张嘉林.多孔排水沥青混合料空隙精细描述与分布特性研究[D].西安:长安大学,2008. ZHANG Jia-lin.Research on Characterization of Air Void Distribution and Its Fine Description in Porous Drainage Asphalt Mixture[D].Xi'an:Chang'an University,2008.
[13]  陈 俊,黄晓明.基于离散元法的沥青混合料虚拟疲劳试验方法[J].吉林大学学报:工学版,2010,40(2):435-440. CHEN Jun,HUANG Xiao-ming.Virtual Fatigue Test of Asphalt Mixture Based on Discrete Element Method[J].Journal of Jilin University:Engineering and Technology Edition,2010,40(2):435-440.

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