高速公路水泥混凝土路面加铺沥青层综合技术研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
近年来,随着交通量和行车荷载的增加,我国早期修建的水泥砼路面破损严重,已不能适应经济快速发展的需要和社会公众对高速公路通行能力和舒适性的迫切要求,在旧水泥砼路面上加铺沥青混凝土面层是改善路面使用性能和延长路面使用寿命的常用措施。目前,虽然国内已对旧水泥砼路面上加铺沥青混凝土面层形成的复合式路面进行了一定研究,然而对这一复合路面的综合技术仍缺乏深入系统的研究。旧路病害处治不彻底、防治反射裂缝措施不合理、加铺层设计不完善等原因导致许多水泥混凝土路面沥青加铺工程使用效果不理想。本文从水泥混凝土路面沥青加铺层的材料组成与性能优化设计、复合式路面结构力学行为特性等角度出发,旨在通过大量室内外试验与检测以及理论分析,对水泥混凝土路面沥青加铺层的材料与结构设计进行系统深入的研究,以提高复合路面结构的综合使用性能,进而推动水泥混凝土路面沥青加铺层技术在我国的进一步发展和应用。
     采用压浆技术对水泥混凝土面板板底脱空进行有效处治是确保水泥混凝土路面沥青加铺层使用性能的重要前提。本文针对目前压浆技术存在的问题,对压浆浆液的配合比组成进行了试验研究,分析了浆液中的不同材料组分以及不同类型外加剂对浆液强度、流动性、粘度、膨胀率、泌水性等力学及使用性能的影响,在此基础上,总结了压浆浆液配合比设计的控制指标及技术标准,提出了压浆质量评价指标,为水泥混凝土路面板底压浆的设计及施工质量控制提供了指导。
     采用有限元软件研究了水泥混凝土路面沥青加铺结构的力学响应特性。分析了轴载、沥青加铺层厚度、应力吸收层模量等对水泥路面沥青加铺结构荷载应力和温度应力的影响。针对含有新型防反射裂缝结构的复合路面进行力学特性分析,结果表明:新型防反射裂缝结构可在一定程度上降低复合路面结构的荷载应力,显著减小复合路面结构的温度应力,从而有效预防复合路面温度型反射裂缝病害的发生。汕梅高速公路大修工程中的监测数据,验证了复合路面结构的实际力学性能变化规律,为高等级公路水泥砼路面沥青加铺层结构的优化设计提供了理论依据。
     依托梅河高速公路水泥混凝土路面沥青加铺工程,验证分析了层间处治措施对“黑白”界面粘结强度的影响。针对常规防水粘结层材料抗剪切强度不足的问题,研发了新型防水粘结层材料—PCMA,阐述了PCMA的作用机理,提出了相应的施工工艺及技术指标。工程应用及性能检测表明,该材料具有抗剪强度高、施工方便和不需要撒布碎石等优点。
     通过疲劳试验对比研究了三种沥青混合料类型以及玻璃纤维格栅、土工织物、SAMI层、聚酯纤维等四种防裂措施对水泥混凝土路面沥青加铺结构抗疲劳性能的影响,结合实体工程对不同防裂措施的效果进行了分析验证,结果表明:设置SAMI应力吸收层对提高沥青路面抗反射裂缝能力比较有效,掺加聚酯纤维的沥青混合料能有效提高抗反射裂缝能力。
     结合大量室内外试验,对比研究了具有不同PG等级沥青及不同矿料级配组成的沥青加铺层混合料路用性能。结果表明:PG82-10改性沥青混合料动稳定度比PG70-10改性沥青混合料提高一倍左右,疲劳寿命是PG70-10改性沥青混合料的两倍多。汕梅高速公路水泥混凝土路面沥青加铺工程通过使用PG82-10改性沥青、新型粘结层材料、新型防反射裂缝措施以及优化配比等创新措施,有效提高了薄层沥青罩面的路用性能,工程应用前景良好。
In recent years, the early constructed cement concrete pavements have damagedseriously with the increase of traffic volume and load, failing to meet the urgent need for fastdevelopment of economy and public demand for traffic capacity and comfort of expressway.Cement concrete pavement with asphalt overlay (CCPAO) is a common used measure toimprove the pavement performance and extend the pavement life. A lot of domesticresearches have been carried out on CCPAO, however, there are still lacks of deep study onthe comprehensive technology of this compound pavement. Some factors, such as halfwaytreatment of old cement concrete pavement, unreasonable anti-crack measure, imperfection ofoverlay design method, etc, lead to unsatisfied performance of CCPAO. Considering theoptimization design of material composition and performance and the mechanicalcharacteristics of the compound pavement structure, this paper, through a lot of experimentsand theoretical analysis, focused on the study of the material and structure design of CCPAOand aimed to improve the comprehensive performance of the compound pavement so as toboost the development of this technology in China.
     Effective treatment of the gap under the concrete slab with grouting is an importantpremise to ensure the favorable performance of CCPAO. Aiming at the problems in groutingtechnology, this paper carried out experiments to study the composition design of groutingslurry. The influences of different material components and various types of admixture on themechanical and performance properties, such as grouting slurry strength, flowability, viscosity,expansion ratio, bleeding, ect. On base of that, the control indexes and technical specificationfor the composition design of grouting slurry and the quality evaluation indicators forgrouting were also proposed, which offer good guidance for the grouting design underconcrete slab.
     By using finite element analysis the mechanical behavior of CCPAO was studied. Theinfluences of traffic load, depth of asphalt overlay, modulus of stress absorbing layer on thestress and strain of CCPAO were analyzed. Additionally, the mechanical characteristics of thecompound pavement with a new type of reflection crack-resisting structure were studied. Theresults showed that the new type of reflection crack-resisting structure could decrease the loadstress of the compound pavement in a certain extent and could obviously decrease thetemperature stress of the compound pavement, thus in turn effectively preventing theappearance of reflection crack due to temperature change. By analyzing the monitoring datafrom ShanMei expressway maintenance project, the actual mechanical behavior laws of the compound pavement structure were verified, which offer theoretical base for the optimizationdesign of CCPAO.
     Depending on the CCPAO in Meihe expressway, the impacts of different types of interlaytreatments on the interfacial bond strength between the cement concrete pavement and theasphalt overlay were verified. Considering the insufficient anti-shear strength of commonbonding layer material, a new type of water proof and bonding material i.e. PCMA, wasdeveloped and the mechanism was illustrated. Additionally, the construction techniques andindexes were also put forward. Actual engineering application and performance determinationshowed that PCMA had the advantages of high anti-shear strength, convenient constructionand no need for spread of crushed stones.
     Using fatigue test, the influences of three types of asphalt mixtures and fourcrack-resisting measures, e.g. glass fiber grilling, geotextile, SAMI layer, and polyester fiber,on the fatigue performance of CCPAO were studied. Verification was also carried out for thedifferent crack-resisting measures with actual projects. The results showed that SAMI layermanifested superiority in terms of crack resistance of CCPAO and polyester fiber contributedto the improvement of crack resistance for asphalt mixture.
     The performance properties of asphalt mixtures using various PG grades and aggregategradations were studied with experiments. The results showed that the dynamic stability ofmixture with PG82modified asphalt was nearly double than that of mixture with PG70. Andthe fatigue life of the former one was two times greater than that of the latter one. By usingthe PG82modified asphalt, developed bonding material, new type of reflection crack-resistingmeasure and optimized mix design, the performance of the compound pavement in ShanMeiexpressway was effectively improved and the corresponding measures have good engineeringperspective.
引文
[1]中华人民共和国行业标准.公路水泥混凝土路面施工技术规范(JTG F30-2003).人民交通出版社,2003
    [2]中华人民共和国行业标准.公路水泥混凝土路面设计规范(JTG D40-2011).人民交通出版社,2002
    [3]中华人民共和国行业标准.公路水泥混凝土路面养护技术规范(JTJ072.1-2001).人民交通出版社,2001
    [4]黄仰贤著.路面分析与设计.人民交通出版社,1994
    [5]Cheung,Y.K.and Zienkiewicz.O.C,Platesand tanks on elastic foundation anapplication offinite element method Iternational Joumal of Solids and Structures,Vol,l,1965.
    [6]Wang,S. K.,Sargious,M. and Cheung,Y.K. Advanced analysis of rigid Pavements.TransPortation Engineering Joumal,ASCE,1974.
    [7]胡长顺、王秉纲著.复合式路面设计原理与施工技术.人民交通出版社,1999
    [8]姚祖康.路面手册[M].北京:人民交通出版社,1999.
    [9]郑传超,王秉纲,夏永旭.道路结构力学计算[M].北京:人民交通出版社,2003.
    [10]唐伯明.路面结构状况的评价与分析-落锤式弯沉仪(FWD)开发应用研究[D].[博士学位论文].南京:东南大学,1990
    [11]王陶,王复明,王钊.弹性地基接缝板模量反演和地基脱空判定[J].岩土力学,2003,24(2):233-236.
    [12]张宁.水泥混凝土路面脱空评定系统.华东公路,1997,No.6:32~35.
    [13]曹东伟.水泥混凝土路面板底脱空判别方法研究[J].西安公路交通大学学报,1998(7):239-243.
    [14]张风程,应荣华.用FWD进行板下地基脱空状况的评定[J].公路与汽运,2002(2):22-24.
    [15]秦仁杰,张映雪.旧水泥混凝土板脱空处治技术研究[J].公路与汽运,2002(1):25-27.
    [16]田波,李志明,胡国强等.水泥混凝土路面脱空的检测及对策[J].华东公路,2002,134(2):58-62.
    [17]彭永恒,张肖宁,罗跃纲.基于频率下降率的刚性路面脱空自适应神经网络识别研究[J].公路,2004(2):50-53.
    [18]陈瑜,张起森.基于FWD检测结果旧路地基脱空状况的模糊评定[J].公路交通科技,2005,22(6):46-49.
    [19]王乾,刘锦涛,王选仓.路面板底脱空唧泥判定与自补偿压浆材料处治[J].长安大学学报,2013,33(1):28-32.
    [20]曾胜,张国雄,唐彩云.水泥混凝土路面板底脱空对路面荷载应力的影响[J].中外公路,2013,33(1):68-71.
    [21]王晋璧,惠阵江,王乾.基于同板弯沉差的板底脱空判定方法[J],公路,2012,1:19-22.
    [22]李燕清,向阳开,熊潮波.水泥混凝土路面板底脱空灌浆材料研究[J],重庆交通大学学报,2012,31(5):957-961.
    [23]刘根生,李明军,毕鹏等.改性乳化沥青水泥基复合材料处治路面板下脱空效果评价[J],山西交通科技,2012,2:8-11.
    [24]王雯珊,向阳开,熊潮波.地质雷达在路面脱空检测中的应用[J].重庆交通大学学报,2012,31(4):811-814.
    [25]顾兴宇,袁青泉,倪富健.基于PFWD的水泥路面板底脱空评定可行性研究[J].合肥工业大学学报,2011,34(5):729-733.
    [26]林有贵,凌桂芳,周书林,陆勇.水泥混凝土路面板底脱空检测方法研究[J].公路交通科技.2005,4(4):20~22
    [27]薛彦卿,黄晓明,石小武等.含脱空水泥混凝土路面交通荷载下的疲劳损伤机理[J].东南大学学报,2014,44(1):199~204.
    [28]陈湘亮,吴江,魏国俊等.水泥混凝土路面脱空板的自振频率试验分析[J].湖南城市学院学报,2013,22(1):11~15.
    [29]陈湘亮,吴江,魏国俊.水泥混凝土路面脱空板的动力特性研究[J].中外建筑,2013,6:126~129.
    [30]张锐,林琳,曾坚.FWD在水泥路面大修改造中的应用[J].公路与汽运,2013,155:131~134.
    [31]张银超,李艳春.板底脱空灌浆材料的正交设计方差分析[J].低温建筑技术,2013,11:16~17.
    [32]李继昉.水泥混凝土路面脱空状况下的弯沉分析[J].上海公路,2012,1:22~25.
    [33]薛彦卿,黄晓明.基于NDT技术的脱空判别改进方法.东南大学学报,2012,42(6):1187~1193.
    [34]姜海,丁改改.水泥混凝土路面板底脱空压浆处治技术研究[J].公路交通科技,2013,1:1~3.
    [35]刘根生,李明军,毕鹏.改性乳化沥青水泥基复合材料处治路面板下脱空效果评价[J].2012,1:8~10.
    [36]吴新民.脱空对水泥混凝土路面承载力的影响分析[J].道路工程,2011,10:204~206.
    [37] Windmill, A. Asphalt and Coated Macadam for Airfield Pavements. Civil Engineering(London), May,1984, p34-43
    [38]Gulden,W.,Brown,D.Overlays for Plain Joinied Conerete Pavemenis[R].Georgia DePariment of Transportation,1984
    [39]周富杰,孙立军.反射裂缝的足尺疲劳试验研究及其力学分析[J].土木工程学报,2001,34(3):78-83。
    [40]林爱萍.水泥混凝土路面加铺沥青混凝土面层反射裂缝的防治措施.科技信息,2009,3:697.
    [41]张忠岐,吴江龙,狄谨.STRAIA反射裂缝应力吸收层施工技术[J].武汉理工大学学报,2003,12:38-40.
    [42]才华,张敏江,徐术陇.反射裂缝的断裂及疲劳分析和模拟计算[J].沈阳建工学院学报.1997,13(3):252-258.
    [43]王金昌,赵颖华.含反射裂缝沥青路面的疲劳变温损伤分析.岩土工程学报,2001.11
    [44]周富杰,孙立军.水泥混凝土路面板结构特性对反射裂缝的影响分析.华东公路,1999.6
    [45]周志刚,张起森,郑健龙.加筋材料阻止沥青路面反射裂缝的桥联增韧的有限元分析.土木工程学报,2000.2:93一99
    [46]曹东伟,胡长顺.有防裂夹层结构的旧水泥混凝土路面沥青加铺层力学分析.中国公路学报,1999.5
    [47]齐艳.应用损伤理论分析旧水泥混凝土路面上沥青罩面层反射裂缝.公路运输文摘,2003.10
    [48]周富杰,孙立军.水泥混凝土路面板结构特性对反射裂缝的影响分析.华东公路,1999.6
    [49]谈至明.路面张开型反射裂缝产生机理的力学分析.同济大学学报,1997.12
    [50]杨斌,陈拴发,廖卫东等.STRATA应力吸收层对加铺层荷载及温度应力的影响分析[J].公路交通科技,2005,22(9):27-29.
    [51]李祖仲,陈拴发,张登良,等.应力吸收层沥青混合料的路用特性[J].长安大学学报,2008,28(2):5-9.
    [52]汤文,孙立军,陈继松.应力吸收层防治沥青加铺层反射裂缝的力学分析[J].公路工程,2008,33(4):1-5.
    [53]谭忆秋,石昆磊,李丽敏等.高粘性沥青应力吸收层防治反射裂缝研究[J].哈尔滨工业大学学报,2008,40(2):241-244.
    [54]马培建,曹高尚,王选仓.基于应力吸收层使用效果的加铺层路面反射裂缝预估模型建立[J].中外公路,2013,33(4):80-84.
    [55]裘国光. GSOG沥青混合料在白加黑路面改造中的应用[J].工程材料与设备,2013,131(3):144-147.
    [56]廖陈林.橡胶改性沥青应力吸收层在水泥路面“白加黑”中的应用[J].福建建材,2013,7:40-41.
    [57]李秋平,陈霞,黄自文等.橡胶沥青应力吸收层的作用机理及施工技术研究[J].公路交通科技(应用技术版),2011,4:115-118.
    [58]崔志盛.高弹应力吸收带在旧水泥路面加铺改造中的应用[J].山西交通科技,2011,5:16-17.
    [59]叶磐,张万磊.几种不同防治反射措施室内试验模拟[J].石油沥青,2011,25(2):11-16.
    [60]李秀君,李梦晨,武昭融.旧水泥混凝土路面加铺水泥-泡沫沥青半柔性混合料的力学响应分析[J].水资源与水工程学报,2013,24(3):184-188.
    [61]曹刚,郑绍军.旧水泥路面加铺水泥-泡沫沥青混合料层结构力学响应分析[J].公路交通科技,2013,11:219-223.
    [62]李渊,赵明.基于疲劳试验的旧水泥路面加铺层结构分析[J].公路与汽运,2012,6:22-24.
    [63]陈星,晏元湘邓朝等.抗反射裂缝技术在三峡坝区主干道改造中的应用[J].中外公路,2012,32(6):100-102.
    [64]袁玉卿,高丹盈王选仓. APP油毡用于旧水泥路面沥青加铺层间防裂[J].武汉理工大学学报,2012,34(4):48-51.
    [65]单景松,郭忠印.旧水泥路面沥青加铺改造中弯沉指标研究[J].同济大学学报,2011,39(4):540-545.
    [66]冯强.基于断裂力学的路面碎石化技术防反射裂缝机理研究[J].公路交通科技,2011,3:73-76
    [67]Dorman G. M. The Estension to Practice of a Fundamental Procedure for the Design ofFlexible Pavements[A]. Proceedings First International Conference on the StructuralDesign of AsphaltPavements[C]. Ann Arbor. University of Miehigan, l962:785-793
    [68]Uzan J.,Livneh M.and Y.Eshed.Investigation of Adhesion ProPerties betweenAsphaltic-Concrete Layers[J].Journal of Asphalt Paving Technology,1978,Vol.47:495~521
    [69] King, G, and R. May,“New Approaches to Tack Application”, presentation made to the83rdAnnual Meeting of the Transportation Research Board, Washington, D.C.,2003.
    [70]张燕萍.水泥路面沥青加铺层及层间材料研究[D],长安大学硕士学位论文,2008
    [71]夏中春.寒区旧水泥路面沥青罩面层间材料路用性能试验分析[J],吉林交通科技,2011,4:5-7.
    [72]王火明.刚柔性路面界面层强度特性研究[D].重庆交通大学硕士学位论文,2008
    [73]王选仓,王朝辉,张燕萍.复合式路面层间处治技术研究与发展[J].筑路机械与施工机械化,2008,2:9-11.
    [74]于明明.混凝土桥面沥青铺装层间处治质量标准研究[D].长安大学硕士学位论文,2012.
    [75]罗敏.露石混凝土桥面板应用及层间抗剪性能研究[D].长安大学,硕士,2009.
    [76]李文科.连续配筋混凝土复合式路面(CRC+AC)层间结合与施工关键技术研究[D长沙理工大学,2009.
    [77]杨太钦.PCC-AC复合式路面典型结构研究[D].广西大学,2008.
    [78]谢彭宇.刚柔复合式路面结构界面处理技术试验研究[D].重庆交通大学,2013.
    [79]张作仁.连续配筋混凝土复合式路面沥青面层及粘结层研究:[D].重庆交通大学,2010,.
    [80]林文岩,陈强,谢泽华.薄层沥青-水泥混凝土复合式路面结构设计研究[J].中外公路,2009,29(4):80-85.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700