连续配筋混凝土路面面层与基层间沥青混合料功能层研究
|
摘要
连续配筋混凝土路面(CRCP)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。为了延长CRCP面层使用寿命,通常在CRCP面层与基层间设沥青混合料功能层,本文对其厚度、材料要求、组成、设计方法进行研究,该研究对减少CRCP面层的早期破坏,改善CRCP使用性能,建设节约型社会具有重要理论意义。
本文基于CRCP层间作用机理和过渡层理论,分析了CRCP常见破坏形式,指出CRCP面层下设置沥青混合料功能层的必要性,功能层的作用主要是提高基层的抗冲刷能力并减少面层中的反射裂缝。通过试验研究了抗冲刷和抗反射裂缝所需的沥青混合料最小油石比,又通过ABAQUS有限元软件研究了功能层模量和厚度与板顶临界应力的关系,得出沥青混合料最佳厚度和最小油石比,然后根据马歇尔法制作了AC—16和AC—13两种沥青混合料,对其进行水稳定性和弯曲破坏试验,最后综合确定了沥青混合料功能层的最佳厚度和能满足抗反射裂缝和抗冲刷性能的最小油石比,并分析了沥青混合料作为功能层时的材料要求,根据试验结果得出功能层的油石比比马歇尔确定的最佳油石比小0.3%,不会影响其抗反射裂缝的能力。
CRCP is an important type of structure for high-grade pavement, which have long service life, need less maintenance and less energy consumption, simplify the construction, and have great adaptability to traffic grade and environlnent. In order to extend concrete pavement service life, an asphalt mixture functional layer is always put between surface and base layers, the dissertation studies on the thickness, material requirements and component design method. The study has important theoretical significance on reducing early damage, improving concrete pavement performance and building conservation-minded society.
The dissertation analyzes common damage types of CRCP on the basis of CRCP interlayer action mechanism and transition layer theory, illustrates the necessity of setting functional layer between base and surface course of CRCP. The main functions of the functional layer are enhancing the anti-erosion ability and reducing reflective cracks in surface layer. The dissertation points out that the function layer is mainly wrecked by erosion and reflection, analyse the relationship between the modulus and thickness of functional layer and board top critical stress, and then decides the optimal thickness and least bitumen ratio for asphalt mix. By making the AC 16 and AC 13 mixtures by Mashall method and carring out water stability test and bending test on them, the dissertation decides the optimal thickness of asphalt mixture functional layer and the least bitumen ratio for resisting erosing and reflection cracking. According to the test results, the bitumen ratio for functional layer are 0.3% less than the optimal bitumen ratio determined by Marshell method, and this would not affact its ability of resisting reflection crcking.
本文基于CRCP层间作用机理和过渡层理论,分析了CRCP常见破坏形式,指出CRCP面层下设置沥青混合料功能层的必要性,功能层的作用主要是提高基层的抗冲刷能力并减少面层中的反射裂缝。通过试验研究了抗冲刷和抗反射裂缝所需的沥青混合料最小油石比,又通过ABAQUS有限元软件研究了功能层模量和厚度与板顶临界应力的关系,得出沥青混合料最佳厚度和最小油石比,然后根据马歇尔法制作了AC—16和AC—13两种沥青混合料,对其进行水稳定性和弯曲破坏试验,最后综合确定了沥青混合料功能层的最佳厚度和能满足抗反射裂缝和抗冲刷性能的最小油石比,并分析了沥青混合料作为功能层时的材料要求,根据试验结果得出功能层的油石比比马歇尔确定的最佳油石比小0.3%,不会影响其抗反射裂缝的能力。
CRCP is an important type of structure for high-grade pavement, which have long service life, need less maintenance and less energy consumption, simplify the construction, and have great adaptability to traffic grade and environlnent. In order to extend concrete pavement service life, an asphalt mixture functional layer is always put between surface and base layers, the dissertation studies on the thickness, material requirements and component design method. The study has important theoretical significance on reducing early damage, improving concrete pavement performance and building conservation-minded society.
The dissertation analyzes common damage types of CRCP on the basis of CRCP interlayer action mechanism and transition layer theory, illustrates the necessity of setting functional layer between base and surface course of CRCP. The main functions of the functional layer are enhancing the anti-erosion ability and reducing reflective cracks in surface layer. The dissertation points out that the function layer is mainly wrecked by erosion and reflection, analyse the relationship between the modulus and thickness of functional layer and board top critical stress, and then decides the optimal thickness and least bitumen ratio for asphalt mix. By making the AC 16 and AC 13 mixtures by Mashall method and carring out water stability test and bending test on them, the dissertation decides the optimal thickness of asphalt mixture functional layer and the least bitumen ratio for resisting erosing and reflection cracking. According to the test results, the bitumen ratio for functional layer are 0.3% less than the optimal bitumen ratio determined by Marshell method, and this would not affact its ability of resisting reflection crcking.
引文
[1]郑建龙、张志刚、张起森.沥青路面抗裂设计理论与方法[M].北京：人民交通出版社,2002.12
[2]周鑫.薄层沥青层间技术研究[D].长安大学硕士论文,2006.6
[3]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
[4]吴国雄.水泥混凝土路面开裂机理及破坏过程研究[D].西南交通大学博士论文2003.6
[5]沈金安.沥青与沥青混合料路用性能[M].人民交通出版社.2000：396-401
[6]郑健龙.沥青路面温度收缩开裂的热粘弹性特性研究[D].长安大学博士论文.2001
[7]Mihai O. Marasteanu, David A. Anderson. Comparasion of Moduli for asphalt Binders Obtained from Different Test Devices. J. AAPT,69:575-599
[8]Vande Loo, PJ. Practical approach to the prediction of rutting in asphalt pavement:The shell method. Transportion Research Record 616, Transportation Research Board, Washington, d. c.1974
[9]AASHTO. AASHTO 2002Guide for design of pavement structures[S]. Washington: American Association of State Highway and Transportation Officals,2004
[10]公路沥青路面施工技术规范(JTJ F40—-2004)
[11]毕玉峰,孙立军.沥青混合料抗剪试验方法及抗剪参数研究[D].上海：同济大学,2004
[12]赵水利,吴震,黄晓明.沥青混合料水稳定性的试验研究[J].东南大学学报,2001,31(3)：1-4
[13]余东坡等.沥青路面低温开裂问题的探讨[J].公路交通科技,2004,(2)：1-4
[14]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[J].山西建筑,2007,12
[15]田盛鼎、刘朝晖.沥青混合料冲刷冻融试验设计和抗水损害性能指标试验研究[J].中外公路,2009,8
[16]廖卫东、王小雄.沥青加铺层抗反射裂缝足尺疲劳试验[J].长安大学学报,2006,9
[17]罗立红.下面层沥青混合料防反射裂缝性能研究[J].石家庄铁道学院学报,2009,6
[18]符冠华.沥青混凝土加铺层改造旧水泥混凝土路面的应用研究[D].东南大学博士论文
[19]孙立军等.沥青路面结构行为能力[M].上海：：同济大学出版社,2004
[20]傅智.水泥混凝土路面施工技术[M].上海：：同济大学出版社
[21]孙立军等.沥青路面结构行为理论[M].北京：：人民交通出版社,2005
[22]NCHRP 1-37A. Guide for mechanistic-empirical design of new and rehabilitated structures. Final Report.2004.
[23]Jeong J-H; Zollinger D.G.. Characterization of stiffness parameters in design of continuously reinforced and jointed pavements. TRR 1778, TRB, National Research Council, Wasington, D.C.,2001: 54-63
[24]Sato R., Hachiya Y., and Kawakami A.. Development of new design method for control of cracking in continuously reinforced concrete pavement. Proc., 4th Int. Conf. Concrete pavement design and rehabilitation, Purdue Univ., West Lafayette, Ind,1989
[25]马庆雷.基于刚性基层的沥青路面结构研究[D].长安大学博士论文,2006.
[26]阳宏毅.连续配筋混凝土复合式路面层间应力分析与结合技术研究[D].长沙理工大学硕士论文.2005
[27]丁润铎.连续配筋混凝土基层结构设计方法研究[D].长安大学硕士学位论文.2006
[28]Walton S., Bradberry T.. Feasibility of a concrete pavement continuously reinforced. ConMat'05, Vancouver, Canada, August 2005.
[29]Selezneva O., Rao C., et al. Development of a mechanistic-empirical structural design procedure for continuously reinforced concrete pavements. TRB 2004 Annual Meeting CD-ROM, TRB, National Council, Wasington, D. C.,2004.
[30]程毅.设置应力吸收层的水泥混凝土路面沥青加铺层研究[D].长安大学硕士论文.2006.6
[31]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.2004
[32]胡立群.半刚性基层材料冲刷性能试验研究[D].长安大学硕士论文.2000.
[33]张君.水泥混凝土路面损伤断裂研究[J].科技信息,2008年第28期
[2]周鑫.薄层沥青层间技术研究[D].长安大学硕士论文,2006.6
[3]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
[4]吴国雄.水泥混凝土路面开裂机理及破坏过程研究[D].西南交通大学博士论文2003.6
[5]沈金安.沥青与沥青混合料路用性能[M].人民交通出版社.2000：396-401
[6]郑健龙.沥青路面温度收缩开裂的热粘弹性特性研究[D].长安大学博士论文.2001
[7]Mihai O. Marasteanu, David A. Anderson. Comparasion of Moduli for asphalt Binders Obtained from Different Test Devices. J. AAPT,69:575-599
[8]Vande Loo, PJ. Practical approach to the prediction of rutting in asphalt pavement:The shell method. Transportion Research Record 616, Transportation Research Board, Washington, d. c.1974
[9]AASHTO. AASHTO 2002Guide for design of pavement structures[S]. Washington: American Association of State Highway and Transportation Officals,2004
[10]公路沥青路面施工技术规范(JTJ F40—-2004)
[11]毕玉峰,孙立军.沥青混合料抗剪试验方法及抗剪参数研究[D].上海：同济大学,2004
[12]赵水利,吴震,黄晓明.沥青混合料水稳定性的试验研究[J].东南大学学报,2001,31(3)：1-4
[13]余东坡等.沥青路面低温开裂问题的探讨[J].公路交通科技,2004,(2)：1-4
[14]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[J].山西建筑,2007,12
[15]田盛鼎、刘朝晖.沥青混合料冲刷冻融试验设计和抗水损害性能指标试验研究[J].中外公路,2009,8
[16]廖卫东、王小雄.沥青加铺层抗反射裂缝足尺疲劳试验[J].长安大学学报,2006,9
[17]罗立红.下面层沥青混合料防反射裂缝性能研究[J].石家庄铁道学院学报,2009,6
[18]符冠华.沥青混凝土加铺层改造旧水泥混凝土路面的应用研究[D].东南大学博士论文
[19]孙立军等.沥青路面结构行为能力[M].上海：：同济大学出版社,2004
[20]傅智.水泥混凝土路面施工技术[M].上海：：同济大学出版社
[21]孙立军等.沥青路面结构行为理论[M].北京：：人民交通出版社,2005
[22]NCHRP 1-37A. Guide for mechanistic-empirical design of new and rehabilitated structures. Final Report.2004.
[23]Jeong J-H; Zollinger D.G.. Characterization of stiffness parameters in design of continuously reinforced and jointed pavements. TRR 1778, TRB, National Research Council, Wasington, D.C.,2001: 54-63
[24]Sato R., Hachiya Y., and Kawakami A.. Development of new design method for control of cracking in continuously reinforced concrete pavement. Proc., 4th Int. Conf. Concrete pavement design and rehabilitation, Purdue Univ., West Lafayette, Ind,1989
[25]马庆雷.基于刚性基层的沥青路面结构研究[D].长安大学博士论文,2006.
[26]阳宏毅.连续配筋混凝土复合式路面层间应力分析与结合技术研究[D].长沙理工大学硕士论文.2005
[27]丁润铎.连续配筋混凝土基层结构设计方法研究[D].长安大学硕士学位论文.2006
[28]Walton S., Bradberry T.. Feasibility of a concrete pavement continuously reinforced. ConMat'05, Vancouver, Canada, August 2005.
[29]Selezneva O., Rao C., et al. Development of a mechanistic-empirical structural design procedure for continuously reinforced concrete pavements. TRB 2004 Annual Meeting CD-ROM, TRB, National Council, Wasington, D. C.,2004.
[30]程毅.设置应力吸收层的水泥混凝土路面沥青加铺层研究[D].长安大学硕士论文.2006.6
[31]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.2004
[32]胡立群.半刚性基层材料冲刷性能试验研究[D].长安大学硕士论文.2000.
[33]张君.水泥混凝土路面损伤断裂研究[J].科技信息,2008年第28期