水泥混凝土路面沥青混合料功能层研究
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摘要
水泥混凝土路面是高等级路面的重要结构型式,具有使用寿命长、养护工作量小、能源消耗少、施工简便以及对交通等级和环境适应性强等优点。但是由于各种原因,我国早期修建的水泥混凝土路面使用寿命大大低于设计使用年限,断裂和脱空等早期病害十分普遍。为了延长混凝土路面使用寿命,本文进行层间加铺沥青混合料功能层的研究,该研究对减少水泥混凝土路面的早期破坏,改善混凝土路面使用性能,建设节约型社会具有重要理论意义。
本文基于混凝土路面层间作用机理和过渡层理论,分析了水泥混凝土路面常见破坏形式,针对刚性基层水泥混凝土路面基层与面层之间的刚度协调问题和半刚性基层水泥混凝土路面的基层冲刷问题,指出水泥混凝土路面设置层间功能层的必要性。依托室内试验,自行开发试验装置测试功能层混合料累积变形,优选常用混合料AC-16、AC-13、AC-10进行试验,分析混合料累积变形影响因素以及增长规律,对试验前后试件进行体积变形分析,得出层间功能层产生累积变形更重要的原因是剪切推挤,而不是压密的结论。根据试验结果得出功能层产生的累积变形小于3.5mm,不会影响混凝土面层的平整度。此外,进行了功能层混合料室内抗剪试验和水稳定性试验验证。在试验研究和理论分析的基础上提出了水泥混凝土路面层间功能层沥青混合料设计方法。
Cement concrete pavement is an important road structure form of high-grade pavement with long service life, low maintenance workload, less energy consumption, simple construction, as well as strong adaptability to traffic grade and environment. However, due to various reasons, our country's early cement concrete pavement life significantly lower than design life, early disease such as fracture and disengaging are widespread. In order to extend concrete pavement service life, The dissertation mainly studyed setting asphalt mixture functional layer for Cement concrete pavement. The study palys important theoretical significance to reduce early damage,improve concrete pavement performance and build a conservation-minded society.
The dissertation based on the concrete pavement interlayer effect mechanism and transition layer theory, analyzes common failure types of cement concrete pavement, according to stiffness coordination problems between base and surface course of rigid base cement concrete pavement and the base erosion problems of semi-rigid base cement concrete pavement,then point out the necessity of setting functional layer between base and surface course of cement concrete pavement. Based on laboratory test, test device is developed to test accumulated deformation of the functional layer mixture. Preferred common mixture AC-16, AC-13, AC-10, analyze the influencing factors of cumulative deformation of mixtures as well as the increasing law. According to specimen volume deformation analysis of pre and post of the test,we can make a conclusion that more important reason of deformation is shear push,rather than pressure consolidation.Based on the test results that the cumulative deformation of the functional layer is less than 3.5mm, will not affect the flatness of the concrete panels. In addition, lab shear test and water stability test are carried out to prove their excellent performance.And based on indoor shear test and water stability test, the dissertation puts forward cement concrete pavement functional layer asphalt mixture design method.
本文基于混凝土路面层间作用机理和过渡层理论,分析了水泥混凝土路面常见破坏形式,针对刚性基层水泥混凝土路面基层与面层之间的刚度协调问题和半刚性基层水泥混凝土路面的基层冲刷问题,指出水泥混凝土路面设置层间功能层的必要性。依托室内试验,自行开发试验装置测试功能层混合料累积变形,优选常用混合料AC-16、AC-13、AC-10进行试验,分析混合料累积变形影响因素以及增长规律,对试验前后试件进行体积变形分析,得出层间功能层产生累积变形更重要的原因是剪切推挤,而不是压密的结论。根据试验结果得出功能层产生的累积变形小于3.5mm,不会影响混凝土面层的平整度。此外,进行了功能层混合料室内抗剪试验和水稳定性试验验证。在试验研究和理论分析的基础上提出了水泥混凝土路面层间功能层沥青混合料设计方法。
Cement concrete pavement is an important road structure form of high-grade pavement with long service life, low maintenance workload, less energy consumption, simple construction, as well as strong adaptability to traffic grade and environment. However, due to various reasons, our country's early cement concrete pavement life significantly lower than design life, early disease such as fracture and disengaging are widespread. In order to extend concrete pavement service life, The dissertation mainly studyed setting asphalt mixture functional layer for Cement concrete pavement. The study palys important theoretical significance to reduce early damage,improve concrete pavement performance and build a conservation-minded society.
The dissertation based on the concrete pavement interlayer effect mechanism and transition layer theory, analyzes common failure types of cement concrete pavement, according to stiffness coordination problems between base and surface course of rigid base cement concrete pavement and the base erosion problems of semi-rigid base cement concrete pavement,then point out the necessity of setting functional layer between base and surface course of cement concrete pavement. Based on laboratory test, test device is developed to test accumulated deformation of the functional layer mixture. Preferred common mixture AC-16, AC-13, AC-10, analyze the influencing factors of cumulative deformation of mixtures as well as the increasing law. According to specimen volume deformation analysis of pre and post of the test,we can make a conclusion that more important reason of deformation is shear push,rather than pressure consolidation.Based on the test results that the cumulative deformation of the functional layer is less than 3.5mm, will not affect the flatness of the concrete panels. In addition, lab shear test and water stability test are carried out to prove their excellent performance.And based on indoor shear test and water stability test, the dissertation puts forward cement concrete pavement functional layer asphalt mixture design method.
引文
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[38]水泥混凝土桥面沥青铺装层剪切试验研究 大连理工大学硕士学位论文2008.6
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[2]吴国雄 水泥混凝土路面开裂机理及破坏过程研究 西南交通大学博士论文2003.9
[3]赵炜诚,许志鸿,黄文 混凝土面层与贫混凝土基层的层间作用对荷载应力和弯沉的影响[J].中国公路学报,2003,16(3)
[4]易志坚,唐伯明,杨庆国 设置隔离层的水泥混凝土路面新型结构 第一届全国公路科技创新高层论坛论文集 公路设计与施工卷
[5]易志坚,吴国雄等 基于断裂力学原理的水泥混凝土路面破坏过程分析及路面设计新构想[J]重庆交通学院学报
[6]SCOTT M TARR,PAUL A OKAMOTO,MATTHEW J,SHEEHAN,ROBERT G PACKARD.Bondinteraction between concrete pavement and lean concrete base[J].Transportation Research Record 1668,1999:9-17
[7]张红波 贫混凝土透水基层水泥混凝土路面温度应力分析 长沙理工大学硕士学位论文2005.4
[8]敖星,周志刚,李强 水泥混凝土板与不同基层界面特性对比研究 公路与汽运1671-2668(2004)03-0039-03
[9]唐伯明,蒙华,刘志军 欧美水泥混凝土路面使用现状综述 公路2003.10
[10]同济大学,中交公路规划设计院,重庆市公路局 水泥混凝土路面断板分析及防治技术研究报告2005.4
[11]姚海龙,朱子义 蜡制养护剂作贫混凝土基层隔离层的应用研究 山西建筑2008.4
[12]陈贵峰 高等级公路水泥混凝土路面沥青封层的设置与研究 中国科技信息2008.1
[13]易志坚,吴国雄等 水泥混凝土路面面层与基层相互作用引起的基本破坏形式及重要影响
[14]肖益民,丁伯承 水泥混凝土路面与基层接触状况的研究 公路2000.9
[15]Vel,P.G.,and Carsberg,E.C.Investigational concrete pavement in Minnesota:18-year report.HRB Bulletin 274,1960
[16]姚祖康 著 水泥混凝土路面设计[M]安徽科学技术出版社1999.7
[17]胡立群 半刚性基层材料冲刷性能试验研究 长安大学硕士论文2000.6
[18]张君 水泥混凝土路面损伤断裂研究 科技信息2008年第28期
[19]姚祖康 公路设计手册-路面(第二版)人民交通出版社,1998
[20]邓学钧,陈荣生 刚性路面设计[M]人民交通出版社2005.1
[21]中交公路规划院,东南大学 沥青设计指标和参数研究报告2007.12
[22]中交第一公路勘察设计研究院有限公司,长安大学 刚性基层水泥混凝土路面层间作用机理及处治技术研究2008.12
[23]吴国雄,姚令侃等 水泥混凝土路面早期裂缝的形成机理[J]西南交通大学学报,2003.6
[24]易志坚,吴国雄等 基于断裂力学原理的水泥混凝土路面破坏过程分析及路面设计新构想.重庆交通学院学报.2001,Vol.20(1)
[25]唐三华 水泥混凝土路面沥青联接层作用初探 道路工程2005.9
[26]徐世法,季节,罗晓辉 沥青铺装层病害防治与典型实例 人民交通出版社
[27]Government Accession No.LIFE CYCLE COST ANALYSIS OF PORTLAND CEMENT CONCRETE PAVEMENTS FHWA/TX-00/0-1739-1
[28]International Technology Scanning Program,Long-Life Concrete Pavements in Europe and Canada
[29]SUH YOUNGC,LEE SEUNGW,KANG,MINS.Evaluation of subbase friction for typical Korean concretepavement[A].The 80-th TRB Annual Meeting[C].Washington DC:TRB,2001.1-25.
[30]ABDREW J,WIMSATT,FRANK MCCULLOUGN.Subbase friction effects on concrete pavements[A]The 3^th International Conference on Concrete Pavement and Design[C].Indiana:Purdue University,1983.3-22
[31]American Association of State Highway and Transportation officials(AASHTO),AASHTO Guide for pavement structures.Washington,D.C.1993
[32]吴雄飞,张起森,金波,李雪莲隔离层对贫混凝土基层水泥混凝土路面结构力学性能的影响 公路2008.7
[33]马银华 设置隔离层的水泥混凝土路面新结构试验研究及计算分析 重庆交通学院硕士论文2004.4
[34]高晓飞 水泥混凝土路面基层特性研究 长安大学硕士论文2000.10
[35]苏泉 水泥混凝土路面断板发生机理及预防 河北工业大学硕士论文2002.5
[36]谈至明,姚祖康,刘伯莹 水泥混凝土路面的温度应力分析 公路2002.8
[37]董开亮 贫混凝土基层超厚水泥混凝土路面 广西大学硕士学位论文2007.6
[38]水泥混凝土桥面沥青铺装层剪切试验研究 大连理工大学硕士学位论文2008.6
[39]程毅 设置应力吸收层的水泥混凝土路面沥青加铺层研究 长安大学硕士论文2006.6
[40]Wu,Shie-shin,and Hearne,Jr,T.M.performance of concrete pavement with econocrete base.Proceedings,4~(th)International Conference on Concrete on Concrete pavement Design and Rehabilitation,Purdue University,1989:683-696
[41]Vel,P.G;and Carsberg,E.C.Investigational concrete pavement in Minnesota:18-year report.HRB bulletin 274,1960
[42]Totsky,O.N.Behavior of multi-layered plates and beams on winkler foundation.1981,6:54-58
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