考虑温度场和可变荷载的沥青面层全厚式车辙试验
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摘要
利用改进的车辙试验仪和其温度梯度控制系统,在试件内部形成试验所需要的温度场,同时试验轮根据路面荷载的实际情况调整轮载和轮速模拟荷载大小与速度的变化。试验基于4 cm改性沥青SMA-13+6 cm改性沥青AC-20+14 cm70~#沥青ATB-30的面层结构,借助改进的车辙试验仪进行了不同温度场下沥青混合料的常载常速和重载低速全厚式车辙试验。试验结果表明,重载低速对沥青路面车辙病害的影响很显著,可以较充分解释长大纵坡的严重车辙现象。同时也表明重载与低速共同作用对沥青路面车辙的影响比高温等因素的影响大。
By using improved rutting tester and its temperature gradient control system,the needed temperature field is generated in the rutting sample,and according to the actual situation of the road load,the load and speed of the test wheel are self-adjusted to simulate the road load and speed changes.Based on the surface course structure of 4 cm modified asphalt SMA13 +6 cm modified asphalt AC20 +14 cm No.70asphalt ATB30,the total thickness rutting tests of asphalt mixture under heavy loading and low speed as well as under standard condition are carried out in different temperature fields with the aid of improved rutting tester.The test results show that the influence of heavy-load low-speed on asphalt pavement rutting disease is very significant,which can fully explain the serious phenomenon of rutting disease of longitudinal and long slope.At the same time,it indicates that the effect of heavy-load and low-speed on asphalt pavement is more serious than the other factors such as high temperature.
By using improved rutting tester and its temperature gradient control system,the needed temperature field is generated in the rutting sample,and according to the actual situation of the road load,the load and speed of the test wheel are self-adjusted to simulate the road load and speed changes.Based on the surface course structure of 4 cm modified asphalt SMA13 +6 cm modified asphalt AC20 +14 cm No.70asphalt ATB30,the total thickness rutting tests of asphalt mixture under heavy loading and low speed as well as under standard condition are carried out in different temperature fields with the aid of improved rutting tester.The test results show that the influence of heavy-load low-speed on asphalt pavement rutting disease is very significant,which can fully explain the serious phenomenon of rutting disease of longitudinal and long slope.At the same time,it indicates that the effect of heavy-load and low-speed on asphalt pavement is more serious than the other factors such as high temperature.
引文
[1]JTG E20—201 1,公路工程沥青及沥青混合料试验规程[S].JTG E20—2011,Standard Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering[S].
[2]JTG F40—2004,公路沥青路面施工技术规范[S].JTG F40-2004,Technical Specifications for Construction of Asphalt Pavements[S].
[3]HADDOCK J E,HAND A J T,FANG Hong-bing,et al.Determining Layer Contributions to Rutting by Surface Profile Analysis[J].Journal of Transportation Engineering,2005,131(2):131-139.
[4]HAIDER S W,CHATTI K.Effect of Design and Site Factors on Structural Rutting of Flexible Pavements in the LTPP SPS-1 experiment[C]//Proceedings of the Technical Sessions.Savannah;Asphalt Paving Technologists,2006:425-456.
[5]KORKILA T.Speed and Reloading Effects on Pavement Rutting[J].Proceedings of the Institution of Civil Engineers:Geotechnical Engineering,2007,160(3):123-127.
[6]LIN C H,CHEN W C.Developing a Four-layer System Rutting Model in Highway[J].Journal of the Chinese Institute of Engineers,2005,28(2):371-374.
[7]李娜,朱文琪,李向东,等.全厚度与标准厚度车辙试验的对比分析[J].武汉理工大学学报,2003,25(12):66-68.LI Na,ZHU Wen-qi,LI Xiang-dong,et al.Researching and Comparing the Total Thickness with the Standard Thickness Track Test[J].Journal of Wuhan University of Technology,2003,25(12):66-68.
[8]谭积青,张肖宁.三层式沥青面层车辙组成及发展的调查与分析[J].公路交通科技,2006,23(1):20-23.TAN Ji-qing,ZHANG Xiao-ning.Investigation and Analysis of Three-layer Asphalt Surface Rutting and Its Development[J].Journal of Highway and Transportation Research and Development,2006,23(1):20-23.
[9]吴瑞麟,石立万,余海洋,等.影响沥青路面全厚度车辙关键因素的试验研究[J].武汉理工大学学报,2008,30(1):58-61.WU Rui-lin,SHI Li-wan,YU Hai-yang,et al.Total Thickness Rutting Research on Key Influencing Factors of Asphalt Pavement[J].Journal of Wuhan University of Technology,2008,30(1):58-61.
[10]栗培龙,张争奇,李洪华,等.沥青混合料汉堡车辙试验方法[J].交通运输工程学报,2010,10(2):30-35.LI Pei-long,ZHANG Zheng-qi,LI Hong-hua,et al.Methods of Hamburg Wheel Tracking Tests for Asphalt Mixture[J].Journal of Traffic and Transportation Engineering,2010,10(2):30-35.
[11]杨军,崔娟,万军,等.基于结构层贡献率的沥青路面抗车辙措施[J].东南大学学报:自然科学版,2007,37(2):350-354.YANG Jun,CUI Juan,WAN Jun,et al.Strategy of Improving Rutting Resistance Based on Contribution Rate of Different Layers[J].Journal of Southeast University:Natural Science Edition,2007,37(2):350-354.
[12]GAO Li-bo,WANG Zhe-ren,DENG Chang-qing,et al.Analysis on Effect Factors of Rutting Performance[C]//Proceedings of the 8th International Conference of Chinese Logistics and Transportation Professionals.Chengdu:ASCE,2008:1-7.
[13]王辉,李雪连,张起森.高温重载作用下沥青路面车辙研究[J].土木工程学报,2009,42(5):139-144.WANG Hui,LI Xue-lian,ZHANG Qi-sen.Rutting in Asphalt Pavement under Heavy Load and High Temperature[J].China Civil Engineering Journal,2009,42(5):139-144.
[14]关宏信,张起森,刘敬.沥青混合料车辙试验改进方法[J].交通运输工程学报,2011,3(11):16-21.GUAN Hong-xin,ZHANG Qi-sen,LIU Jing.Rutting Test Improving Methods of Asphalt Mixture[J].Journal of Traffic and Transportation Engineering,2011,,3(11):16-21.
[15]关宏信,张起森,罗增杰,等.全厚式沥青面层车辙控制标准探讨[J].土木工程学报,2011,44(7):124-129.GUAN Hong-xin,ZHANG Qi-sen,LUO Zeng-jie,et al.Rut Control Standard for Asphalt Surface Total-thickness Samples[J].China Civil Engineering Journal,2011,44(7):124-129.
[2]JTG F40—2004,公路沥青路面施工技术规范[S].JTG F40-2004,Technical Specifications for Construction of Asphalt Pavements[S].
[3]HADDOCK J E,HAND A J T,FANG Hong-bing,et al.Determining Layer Contributions to Rutting by Surface Profile Analysis[J].Journal of Transportation Engineering,2005,131(2):131-139.
[4]HAIDER S W,CHATTI K.Effect of Design and Site Factors on Structural Rutting of Flexible Pavements in the LTPP SPS-1 experiment[C]//Proceedings of the Technical Sessions.Savannah;Asphalt Paving Technologists,2006:425-456.
[5]KORKILA T.Speed and Reloading Effects on Pavement Rutting[J].Proceedings of the Institution of Civil Engineers:Geotechnical Engineering,2007,160(3):123-127.
[6]LIN C H,CHEN W C.Developing a Four-layer System Rutting Model in Highway[J].Journal of the Chinese Institute of Engineers,2005,28(2):371-374.
[7]李娜,朱文琪,李向东,等.全厚度与标准厚度车辙试验的对比分析[J].武汉理工大学学报,2003,25(12):66-68.LI Na,ZHU Wen-qi,LI Xiang-dong,et al.Researching and Comparing the Total Thickness with the Standard Thickness Track Test[J].Journal of Wuhan University of Technology,2003,25(12):66-68.
[8]谭积青,张肖宁.三层式沥青面层车辙组成及发展的调查与分析[J].公路交通科技,2006,23(1):20-23.TAN Ji-qing,ZHANG Xiao-ning.Investigation and Analysis of Three-layer Asphalt Surface Rutting and Its Development[J].Journal of Highway and Transportation Research and Development,2006,23(1):20-23.
[9]吴瑞麟,石立万,余海洋,等.影响沥青路面全厚度车辙关键因素的试验研究[J].武汉理工大学学报,2008,30(1):58-61.WU Rui-lin,SHI Li-wan,YU Hai-yang,et al.Total Thickness Rutting Research on Key Influencing Factors of Asphalt Pavement[J].Journal of Wuhan University of Technology,2008,30(1):58-61.
[10]栗培龙,张争奇,李洪华,等.沥青混合料汉堡车辙试验方法[J].交通运输工程学报,2010,10(2):30-35.LI Pei-long,ZHANG Zheng-qi,LI Hong-hua,et al.Methods of Hamburg Wheel Tracking Tests for Asphalt Mixture[J].Journal of Traffic and Transportation Engineering,2010,10(2):30-35.
[11]杨军,崔娟,万军,等.基于结构层贡献率的沥青路面抗车辙措施[J].东南大学学报:自然科学版,2007,37(2):350-354.YANG Jun,CUI Juan,WAN Jun,et al.Strategy of Improving Rutting Resistance Based on Contribution Rate of Different Layers[J].Journal of Southeast University:Natural Science Edition,2007,37(2):350-354.
[12]GAO Li-bo,WANG Zhe-ren,DENG Chang-qing,et al.Analysis on Effect Factors of Rutting Performance[C]//Proceedings of the 8th International Conference of Chinese Logistics and Transportation Professionals.Chengdu:ASCE,2008:1-7.
[13]王辉,李雪连,张起森.高温重载作用下沥青路面车辙研究[J].土木工程学报,2009,42(5):139-144.WANG Hui,LI Xue-lian,ZHANG Qi-sen.Rutting in Asphalt Pavement under Heavy Load and High Temperature[J].China Civil Engineering Journal,2009,42(5):139-144.
[14]关宏信,张起森,刘敬.沥青混合料车辙试验改进方法[J].交通运输工程学报,2011,3(11):16-21.GUAN Hong-xin,ZHANG Qi-sen,LIU Jing.Rutting Test Improving Methods of Asphalt Mixture[J].Journal of Traffic and Transportation Engineering,2011,,3(11):16-21.
[15]关宏信,张起森,罗增杰,等.全厚式沥青面层车辙控制标准探讨[J].土木工程学报,2011,44(7):124-129.GUAN Hong-xin,ZHANG Qi-sen,LUO Zeng-jie,et al.Rut Control Standard for Asphalt Surface Total-thickness Samples[J].China Civil Engineering Journal,2011,44(7):124-129.