为获得道面表面构造纹理参数对其抗滑性的影响规律以科学指导道面抗滑性设计和施工,基于水泥混凝土道面表面宏观构造、粗观构造和细观构造对抗滑性影响因素和摩阻机理的分析,探讨了道面宏观构造对胎面所产生的变形摩擦力分量、表层微细构造尖端对胎面微切削摩擦力的力学行为,提出了基于道面纹理间距、纹理凸体棱角坡度、纹理凹陷深度和宽度等构造参数的摩擦因数分析模型。基于弹性包络理论,分析了纹理间距、凸体棱角坡度、凹陷深度和宽度等参数对轮胎变形摩阻和微切削摩阻的影响规律,并分别对不同纹理间距、凸体棱角坡度和凹陷深度的水泥混凝土道面试件进行了实验室试验。结果表明:凹陷深度在2~6 mm之间增大时,其抗滑性均显著增大;但当凹陷深度超过4 mm后,间距较密(小于20 mm)的纹理凸体棱角坡度对抗滑性影响很小;而间距较疏(大于25 mm)的纹理凸体棱角坡度对抗滑性影响显著,且其抗滑性随凹陷深度增大显著,因此,在纹理较稀疏的道面上有必要加深凹陷深度,而较密纹理的道面上加深凹陷深度则无意义;纹理凸体棱角坡度的钝化对抗滑性影响的规律显著,但当凸体棱角坡度被磨损钝化到45°后,纹理间距几乎不再影响其抗滑性,因此,对于容易磨损钝化的道面,当纹理间距小于20 mm时,再加密纹理难以增大其摩阻性。
Abstract
In order to obtain the effect laws of pavement surface texture parameters on its anti-sliding performance so as to scientifically guide the anti-sliding design and construction of the pavement, the deformed friction component to tire caused by pavement macro-texture and the mechanical behavior of micro-cutting friction caused by the tip of pavement surface micro-texture to tire were discussed based on the analyses of the influence factors of the macro-texture, coarse-texture and micro-texture of the cement concrete pavement on the anti-sliding friction mechanism. The friction coefficient analysis model concerning pavement texture spacing, texture convex edge angle, texture depth, and texture groove width and other parameters was presented. Based on the elastic envelope theory, the influence laws of parameters including texture spacing, convex edge angle, texture depth, groove width on the deformed friction and micro-cutting friction were analyzed, and laboratory test was carried out for the specimens with different texture spacings, texture convex edge angles and texture depths. The results show that the anti-sliding performance is significantly increased as texture depth increases within the range of 2-6 mm; however, when the texture depth is deeper than 4 mm, the convex edge angle has little impact on anti-sliding performance when the texture spacing is less than 20 mm; but when the texture spacing is larger than 25 mm, the convex edge angle has significant influence on anti-sliding performance, and the friction increases with the increase of texture depth. Therefore texture depth needs to be increased for the loose texture pavement, while the increment of the texture depth has no effect when the texture spacing is close. The decrement of texture convex edge angle has significant influence on the anti-sliding performance. Nonetheless, when the texture convex edge angle is abraded to less than 45°, there is almost no effect of texture spacing on the anti-sliding performance. So for the pavement which is easy to be worn out, the friction can hardly be enhanced by decreasing the texture spacing, when the texture spacing is less than 20 mm.
关键词
道路工程 /
水泥混凝土道面 /
抗滑性构造 /
摩擦因数 /
构造纹理 /
构造深度
{{custom_keyword}} /
Key words
road engineering /
cement concrete pavement /
anti-sliding texture /
frictional coefficient /
structural texture /
texture depth
{{custom_keyword}} /
中图分类号:
U416.22
{{custom_clc.code}}
({{custom_clc.text}})
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 曹平,严新平,白秀琴.沥青路面形貌对抗滑性能影响的理论分析[J].摩擦学学报,2009,29(4):306-310. CAO Ping,YAN Xin-ping,BAI Xiu-qin.Theory Analyses of Effect of Topography on Skid Resistance of Asphalt Pavements[J].Tribology,2009,29(4):306-310.
[2] CHEN J S,CHEN S F,LIAO M C.Macroscopic and Microscopic Evaluation of Surface Friction of Airport Pavements[J].International Journal of Pavement Research and Technology,2013,6(5):588-594.
[3] UECKERMANN A,WANG D W,OESER M,et al.A Contribution to Non-contact Skid Resistance Measurement[J].International Journal of Pavement Engineering,2015,16(7):646-659.
[4] MIAO Y H,SONG P P,GONG X Q.Fractal and Multifractal Characteristics of 3D Asphalt Pavement Macrotexture[J].Journal of Materials in Civil Engineering,2014,26(8):1-11.
[5] 谢友柏.摩擦学的三个公理[J].摩擦学学报,2001,21(3):161-166. XIE You-bai.Three Axioms in Tribology[J].Tribology,2001,21(3):161-166.
[6] 温诗铸,黄平.摩擦学原理[M].4版.北京:清华大学出版社,2002. WEN Shi-zhu,HUANG Ping.Principles of Tribology[M].4th ed.Beijing:Tsinghua University Press,2002.
[7] 布尚B.摩擦学导论[M].葛世荣,译.北京:机械工业出版社,2007. BHUSHAN B.Introduction of Tribology[M].Translated by GE Shi-rong.Beijing:China Machine Press,2007.
[8] PRATICO F G,VAIANA R.A Study on the Relationship Between Mean Texture Depth and Mean Profile Depth of Asphalt Pavements[J].Construction and Building Materials,2015,101:72-79.
[9] MH5006-2015,民用机场飞行区水泥混凝土道面面层施工技术规范[S]. MH5006-2015,Technical Specifications for Construction of Cement Concrete Pavement for Airfield Area of Civil Airports[S].
[10] 赵方冉,巩金海,常媛媛.基于表面构造的水泥混凝土道面抗滑模型[J].交通运输工程学报,2012,12(4):17-24. ZHAO Fang-ran,GONG Jin-hai,CHANG Yuan-yuan.Anti-slide Model of Cement Concrete Pavement Based on Surface Texture[J].Journal of Traffic and Transportation Engineering,2012,12(4):17-24.
[11] 朱洪涛.水泥混凝土路面抗滑机理及测试技术研究[D].西安:长安大学,2009. ZHU Hong-tao.Research on the Cement Concrete Pavement Friction Mechanism and Test Technology[D].Xi'an:Chang'an University,2009.
[12] KANE M,RADO Z,TIMMONS A.Exploring the Texture-friction Relationship:From Texture Empirical Decomposition to Pavement Friction[J].International Journal of Pavement Engineering,2015,16(10):919-928.
[13] FWA T F,ONG G P.Wet-pavement Hydroplaning Risk and Skid Resistance:Analysis[J].Journal of Transportation Engineering,2008,134(5):182-190.
[14] HD 28/04,Design Manual for Roads and Bridges[S].
[15] AHAMMED M A,TIGHE S L.Concrete Pavement Surface Textures and Multivariable Frictional Performance Analysis:A North American Case Study[J].Canada Journal of Civil Engineering,2008,35(7):727-738.
[16] 周仲荣,钱茂林.摩擦学尺寸效应及相关问题的思考[J].机械工程学报,2003,39(8):22-25. ZHOU Zhong-rong,QIAN Mao-lin.Tribological Size Effect and Related Problems[J].Chinese Journal of Mechanical Engineering,2003,39(8):22-25.
[17] CHEN Yu,WANG Ke-jin,ZHOU Wen-fang.Evaluation of Surface Textures and Skid Resistance of Pervious Concrete Pavement[J].Journal of Central South University,2013,20(2):520-527.
[18] 王世伟.道面构造与抗滑性能模型分析[D].天津:中国民航大学,2010. WANG Shi-wei.Analysis of Pavement Structure and Anti-sliding Performance Model[D].Tianjin:Civil Aviation University of China,2010.
[19] 朱永刚,刘琨.橡胶轮胎摩擦理论与数值化发展前景[J].特种橡胶制品,2006,27(5):50-57. ZHU Yong-gang,LIU Kun.Friction Theory of Rubber Tire and Development of Its Valuation[J].Special Purpose Rubber Products,2006,27(5):50-57.
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}
基金
中国民航机场工程研究基地开放基金项目(JCJD1504)
{{custom_fund}}
{{custom_fund}}