干旱寒冷地区沥青路面温度应力研究
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摘要
青海省干旱寒冷地区地处高原,气候变化急剧,冬长夏短、寒冷季节长,年平均气温较低、昼夜温差大,气候干燥、年平均降水量在250mm以下。该地区的沥青路面在如此严酷的气候环境下,容易出现低温开裂、半刚性基层干缩裂缝等病害。所以对青海省干旱寒冷地区沥青路面在其特殊气候环境下的力学状态进行分析,对该地区沥青路面结构设计有非常重要的意义。
论文首先对青海省干旱寒冷地区的环境特征、交通量及交通组成、区内三条干线公路的沥青路面结构形式、沥青路面主要破坏类型等进行了调查,并根据上述调查结果分析该地区沥青路面破坏的原因。然后,在参考国内外相关文献和研究成果的基础上,以半刚性基层沥青路面为研究对象,采用ANSYS有限元软件,建立热-结构耦合二维有限元模型。计算沥青路面各结构层在温度循环作用下的温度应力,分析沥青面层厚度、沥青混合料温缩系数、沥青面层模量、日温差、基层厚度与模量对沥青路面各结构层温度应力的影响规律。并提出青海省干旱寒冷地区预切缝半刚性基层等沥青路面的结构形式,计算和分析该型路面结构在温度循环作用下不同预切缝间距的温度应力状况进行。最后,提出了预切缝半刚性基层沥青路面合理预切缝间距的确定方法和干旱寒冷地区沥青路面低温抗裂设计方法,确定干旱寒冷地区沥青路面低温抗裂设计流程。
The arid and cold region in Qinhai province is located in plateau, rapid climate change, long cold season, the lower average annual temperature, higher diurnal temperature range, arid climate,250mm less average annual precipitation. Asphalt pavements in the region prone to low temperature and semi-rigid base shrinkage cracks. It is very practical significant that analysis the mechanical state of asphalt pavement of the arid and cold region in Qinghai province in its special climate conditions for this region's asphalt pavement structure design.
The thesis investigated the environmental characteristics, traffic volume and traffic composition, three trunk highways'asphalt pavemet main structures and damage types of the arid and cold region in Qinghai province. Based on these findings,the reasons of the asphalt pavement damage caused were analyzed. On the basis of a review of relevant literature and research, as the asphalt pavement for research object,the thesis uses the finite element software ANYSY, sets up thermal-structure coupling two-dimensional finite element model. Asphalt pavement thermal stress law that influenced by the thickness of asphalt surface,asphalt mixture temperature shrinkage index, modulus of asphalt surface, diurnal temperature range, thickness and modulus of base course was obtained, with calculating asphalt pavement thermal stress under temperature cyclings. Pre-cut semi-rigid base course asphalt pavement structure in the arid and cold region in Qinghai province is advanced. Thermal stresses of pre-cut semi-rigid base course asphalt pavement with different pre-cut spacing under temperature cycling are calculated and analyzed. Finally, the method for determining pre-cut semi-rigid base course asphalt pavement reasonable pre-cut spacing is advanced. And, design method of preventing low tempreature cracking in the arid and cold region is advanced. The design process for preventing low temperature crackinng in the arid and cold in Qinghai province is given.
论文首先对青海省干旱寒冷地区的环境特征、交通量及交通组成、区内三条干线公路的沥青路面结构形式、沥青路面主要破坏类型等进行了调查,并根据上述调查结果分析该地区沥青路面破坏的原因。然后,在参考国内外相关文献和研究成果的基础上,以半刚性基层沥青路面为研究对象,采用ANSYS有限元软件,建立热-结构耦合二维有限元模型。计算沥青路面各结构层在温度循环作用下的温度应力,分析沥青面层厚度、沥青混合料温缩系数、沥青面层模量、日温差、基层厚度与模量对沥青路面各结构层温度应力的影响规律。并提出青海省干旱寒冷地区预切缝半刚性基层等沥青路面的结构形式,计算和分析该型路面结构在温度循环作用下不同预切缝间距的温度应力状况进行。最后,提出了预切缝半刚性基层沥青路面合理预切缝间距的确定方法和干旱寒冷地区沥青路面低温抗裂设计方法,确定干旱寒冷地区沥青路面低温抗裂设计流程。
The arid and cold region in Qinhai province is located in plateau, rapid climate change, long cold season, the lower average annual temperature, higher diurnal temperature range, arid climate,250mm less average annual precipitation. Asphalt pavements in the region prone to low temperature and semi-rigid base shrinkage cracks. It is very practical significant that analysis the mechanical state of asphalt pavement of the arid and cold region in Qinghai province in its special climate conditions for this region's asphalt pavement structure design.
The thesis investigated the environmental characteristics, traffic volume and traffic composition, three trunk highways'asphalt pavemet main structures and damage types of the arid and cold region in Qinghai province. Based on these findings,the reasons of the asphalt pavement damage caused were analyzed. On the basis of a review of relevant literature and research, as the asphalt pavement for research object,the thesis uses the finite element software ANYSY, sets up thermal-structure coupling two-dimensional finite element model. Asphalt pavement thermal stress law that influenced by the thickness of asphalt surface,asphalt mixture temperature shrinkage index, modulus of asphalt surface, diurnal temperature range, thickness and modulus of base course was obtained, with calculating asphalt pavement thermal stress under temperature cyclings. Pre-cut semi-rigid base course asphalt pavement structure in the arid and cold region in Qinghai province is advanced. Thermal stresses of pre-cut semi-rigid base course asphalt pavement with different pre-cut spacing under temperature cycling are calculated and analyzed. Finally, the method for determining pre-cut semi-rigid base course asphalt pavement reasonable pre-cut spacing is advanced. And, design method of preventing low tempreature cracking in the arid and cold region is advanced. The design process for preventing low temperature crackinng in the arid and cold in Qinghai province is given.
引文
[1]沈金安,国内外沥青路面设计方法总汇[M].北京：人民交通出版社.2004
[2]J. F. Hill.Predicting the Fracture of Asphalt Mixes by Thermal Stresses. Inst. Petroleum, Vol.74-014,1974
[3]T. Sugawara,H. kubo,A,Morigoshi. Low Temperature Cracking of Asphalt Pavements, Proceedings. Canda-Japan Paving in Cold Areas Mini-workshop,1982
[4]R. Hass. a Method for Designing Asphalt Pavements to Minimize Low-temperature Shrinkage Cracking. RR-73-1,Asphalt Institute,1973
[5]T. Fabb. the Influence of Mix Composition,Binder Properties and Cooling Rate on Asphalt Cracking. Preceedings of AAPT, Vol.43,1974
[6]B.E. Ruth,L. A. K. Boy,A. A. Avital. Prediction of Pavement Cracking at Low-Temperature.Preceedings of AAPT, Vol.51,1982
[7]D. H. Hung,T. S.Vison. Low-Temperature Cracking:Binder Validation. SHRP-A-399, April,1994
[8]D. H. Hung,T. S.Vison. Low-Temperature Cracking Resistance of Asphalt Concrete Mixtures. Preceedings of AAPT,Vol.62,1993
[9]H. K. Zubeck,T. S.Vison. Prediction of Low-Temperature Cracking of Asphalt Concrete Mixtures with Thermal Stress Retrained Specimen Test Results. TRR 1545,1946
[10]R. Roque,D.R. Hiltunent,W. G. Buttlar. Thermal Cracking Performance and Design of Mixtures Using Superpave. Preceedings of AAPT, Vol.64,1995
[11]A. L. Epps. an Approach to Examine Thermal Fatigue in Asphalt Concrete. Preceedings of AAPT,Vol.68,1999
[12]S.Carpentar,R. Lytton. Thermal Pavement Cracking in West Texas. Texas Transportation Institute,1976
[13]T. Eugawara,A. Morigoshi. Thermal Fracture of Bitumibous Mixtures. Proceedings of Paveing in Cold Areas Mini-Workshop,1984
[14]M. Shahin,B. F.McCullough. Prediction of Low-Temperature and Thermal Fatigue Cracking in Flexible Pavements. Research Report 123-14,Texas:Center for Highway Research,1972
[15]N. M. Jackson,T. Vinson. Analysis of Thermal Fatigue Distress of Asphalt Concrete Pavements. Transportation Research Record 1545,1996
[16]D. Little,K. Mabboub.Engineering Properties of First Generation Plasticized Sulfur Binder and Low-Temperature Fracture Evaluation of Plasticized Sulfur Paving Mixtures. Transporta-tion Research Record 1034m 1985
[17]R. Lytton,U. Shanmuham,B,Garret. Design of Asphalt Pavement for Thermal Fatigue Cracking. Research Report 284-4,Texas:Texas Transportation Institute,1983
[18]A. Abdelshafi,K. Kaloush. J-inegral and Cyclic Plasticity Approach to Fatigue and Fracture of Asphalt Mixtures. Transportation Research Record 1034,1985
[19]A. Abdelshafi,K. Kaloush. Modifiers for Asphalt Concrete. ESL-TR-88-29,Air Force Engineering and Services Center,1988
[20]吴赣昌,凌天清.半刚性基层温缩裂缝的扩展机理分析.中国公路学报[J].11,1998
[21]郑健龙,关宏信.温缩型反射裂缝的粘弹性有限元分析.中国公路学报[J].3,2001
[22]张起森,郑健龙,刘益河.半刚性基次沥青路面的开裂机理.土木工程学报[J].1992
[23]袁树基.沥青路面纵向裂缝的成因及防治.建材技术及应用.8,2007.
[24]郭长喜,滕俊常.关于沥青路面龟网裂成因及处治的探讨[J].黑龙江交通科技.No.3,2005
[25]徐斌,孙志梅,于晓峰.沥青混合土路面网裂的原因及预防[J].黑龙江交通科技.No.8,2004年
[26]韩周亮,王慎丽.沥青路面冻缩性网裂防治的措施[J].河南科技,9,2004
[27]陈瑶,张维贵.沥青混凝土路面坑槽形成原因及修补方法分析[J].辽宁省交通高等专科学校学报.Vol.11,No.8,2009
[28]梁俊峰.浅析沥青路面推移成因及防治[J].科学之友.02,2008
[29]C.L. Monismith,K. E. Secor. Viscoelastic Behavior of Asphalt Concrete Pavements. Proceedings of Int. Conf.on Structural Design of Asphalt Pavements,1962
[30]沈金安.沥青及沥青混合料路用性能[M].人民交通出版社.2001
[31]K. Majidzadeh,D. V.Ramsamooj & T. A. Fletcher.Analysis of Fatigue of Sand-asphalt Mixtures.Proceedings of Association of Asphalt Paving Technologies, Vol.30,1969
[32]K. Majidzadeh,D.V.Ramsamooj,Mechanistic Approach to the Solution of Cracking in Pavements. HRB 916
[33]K. Majidzadeh. Development and Field Verification of a Mechanistic Structural Design System in Ohio.Proceedings of 4th Int. Conf. Structural Design of Asphalt Pavement,1977
[34]Pabitra. Rajbonshi,Animesh. Das,Thermal Fatigue Considerations in Asphalt Pavement Design. ISSN 1997-1400INT.J.Pavement Rcs and Tchnol.1(4)
[35]“八五”国家重点科技项目(攻关).道路沥青及沥青混合料路用性能的研究[G].1995
[36]胡鸿雁.基于半刚性基曾沥青路面温度场和温度应力数值模拟的研究[D].安徽理工大学.6,2007
[37]周生金.沥青路面荷载与温度耦合作用疲劳特性研究[D].长安大学.2005
[38]艾发.高寒地区沥青路面行为特性与设计方法研究[D].西南交通大学.2008
[39]赖友兵,王江平,王婷静.低温状态下的沥青路面受力分析[J].浙江交通职业技术学院学报.VOL.8,No.4,2007
[40]罗辉.沥青路面粘弹性相应分析及裂纹扩展研究[D].华中科技大学.2007
[42]贾志清.北方沥青路面低温抗裂形研究[D].长安大学.2006
[46]Joege C.Pais, Poulo A. A. Pereira. A Model for Pavement Temperature Prediction. Braganca Polytechnic Institute-Superior School of Management and Technology.2004
[48]Sang-Soo Kim.Direct Measurement of Asphalt Binder Thermal Cracking. Journal of Materuals in Civil Engineering.2005
[50]Andrew D. Chiasson,Cent Yavuzturk,Khaled Ksaibati. Linearized Approach for Predict-ing Thermal Stresses in Asphalt Pavement due to Environmental Conditions. Journal of Mate-rials in Civil Engineering.2008
[51]Guodong Cheng. Premafrot Studier in the Qinghai-Tibet Plateau for Road Construc-tion. Journal of Cold Regions Engineering. Vol.19,No.1,2005
[52]刘东,艾长发,刘红波,黄冰.寒冷地区沥青路面病害特征与合理结构研究综述[C].中国交通土建工程学术论文集.2006
[53]汪青春,秦宁生,张国胜,李林,赵永业.青海测器时期以来气温变化特征[J].气象科技.Vol.33,No.5,2005
[54]商亚鹏.半刚性基层沥青路面温缩性能试验及温度应力分析[D].长安大学.2008
[55]屈彦玲,杜立峰.沥青路面温度应力裂缝粘弹性有限元分析[J].路基工程.No.2,2008
[56]吴文彪.基于老化沥青混凝土松弛特性的沥青路面低温开裂研究[D].长沙理工大学.2008
[2]J. F. Hill.Predicting the Fracture of Asphalt Mixes by Thermal Stresses. Inst. Petroleum, Vol.74-014,1974
[3]T. Sugawara,H. kubo,A,Morigoshi. Low Temperature Cracking of Asphalt Pavements, Proceedings. Canda-Japan Paving in Cold Areas Mini-workshop,1982
[4]R. Hass. a Method for Designing Asphalt Pavements to Minimize Low-temperature Shrinkage Cracking. RR-73-1,Asphalt Institute,1973
[5]T. Fabb. the Influence of Mix Composition,Binder Properties and Cooling Rate on Asphalt Cracking. Preceedings of AAPT, Vol.43,1974
[6]B.E. Ruth,L. A. K. Boy,A. A. Avital. Prediction of Pavement Cracking at Low-Temperature.Preceedings of AAPT, Vol.51,1982
[7]D. H. Hung,T. S.Vison. Low-Temperature Cracking:Binder Validation. SHRP-A-399, April,1994
[8]D. H. Hung,T. S.Vison. Low-Temperature Cracking Resistance of Asphalt Concrete Mixtures. Preceedings of AAPT,Vol.62,1993
[9]H. K. Zubeck,T. S.Vison. Prediction of Low-Temperature Cracking of Asphalt Concrete Mixtures with Thermal Stress Retrained Specimen Test Results. TRR 1545,1946
[10]R. Roque,D.R. Hiltunent,W. G. Buttlar. Thermal Cracking Performance and Design of Mixtures Using Superpave. Preceedings of AAPT, Vol.64,1995
[11]A. L. Epps. an Approach to Examine Thermal Fatigue in Asphalt Concrete. Preceedings of AAPT,Vol.68,1999
[12]S.Carpentar,R. Lytton. Thermal Pavement Cracking in West Texas. Texas Transportation Institute,1976
[13]T. Eugawara,A. Morigoshi. Thermal Fracture of Bitumibous Mixtures. Proceedings of Paveing in Cold Areas Mini-Workshop,1984
[14]M. Shahin,B. F.McCullough. Prediction of Low-Temperature and Thermal Fatigue Cracking in Flexible Pavements. Research Report 123-14,Texas:Center for Highway Research,1972
[15]N. M. Jackson,T. Vinson. Analysis of Thermal Fatigue Distress of Asphalt Concrete Pavements. Transportation Research Record 1545,1996
[16]D. Little,K. Mabboub.Engineering Properties of First Generation Plasticized Sulfur Binder and Low-Temperature Fracture Evaluation of Plasticized Sulfur Paving Mixtures. Transporta-tion Research Record 1034m 1985
[17]R. Lytton,U. Shanmuham,B,Garret. Design of Asphalt Pavement for Thermal Fatigue Cracking. Research Report 284-4,Texas:Texas Transportation Institute,1983
[18]A. Abdelshafi,K. Kaloush. J-inegral and Cyclic Plasticity Approach to Fatigue and Fracture of Asphalt Mixtures. Transportation Research Record 1034,1985
[19]A. Abdelshafi,K. Kaloush. Modifiers for Asphalt Concrete. ESL-TR-88-29,Air Force Engineering and Services Center,1988
[20]吴赣昌,凌天清.半刚性基层温缩裂缝的扩展机理分析.中国公路学报[J].11,1998
[21]郑健龙,关宏信.温缩型反射裂缝的粘弹性有限元分析.中国公路学报[J].3,2001
[22]张起森,郑健龙,刘益河.半刚性基次沥青路面的开裂机理.土木工程学报[J].1992
[23]袁树基.沥青路面纵向裂缝的成因及防治.建材技术及应用.8,2007.
[24]郭长喜,滕俊常.关于沥青路面龟网裂成因及处治的探讨[J].黑龙江交通科技.No.3,2005
[25]徐斌,孙志梅,于晓峰.沥青混合土路面网裂的原因及预防[J].黑龙江交通科技.No.8,2004年
[26]韩周亮,王慎丽.沥青路面冻缩性网裂防治的措施[J].河南科技,9,2004
[27]陈瑶,张维贵.沥青混凝土路面坑槽形成原因及修补方法分析[J].辽宁省交通高等专科学校学报.Vol.11,No.8,2009
[28]梁俊峰.浅析沥青路面推移成因及防治[J].科学之友.02,2008
[29]C.L. Monismith,K. E. Secor. Viscoelastic Behavior of Asphalt Concrete Pavements. Proceedings of Int. Conf.on Structural Design of Asphalt Pavements,1962
[30]沈金安.沥青及沥青混合料路用性能[M].人民交通出版社.2001
[31]K. Majidzadeh,D. V.Ramsamooj & T. A. Fletcher.Analysis of Fatigue of Sand-asphalt Mixtures.Proceedings of Association of Asphalt Paving Technologies, Vol.30,1969
[32]K. Majidzadeh,D.V.Ramsamooj,Mechanistic Approach to the Solution of Cracking in Pavements. HRB 916
[33]K. Majidzadeh. Development and Field Verification of a Mechanistic Structural Design System in Ohio.Proceedings of 4th Int. Conf. Structural Design of Asphalt Pavement,1977
[34]Pabitra. Rajbonshi,Animesh. Das,Thermal Fatigue Considerations in Asphalt Pavement Design. ISSN 1997-1400INT.J.Pavement Rcs and Tchnol.1(4)
[35]“八五”国家重点科技项目(攻关).道路沥青及沥青混合料路用性能的研究[G].1995
[36]胡鸿雁.基于半刚性基曾沥青路面温度场和温度应力数值模拟的研究[D].安徽理工大学.6,2007
[37]周生金.沥青路面荷载与温度耦合作用疲劳特性研究[D].长安大学.2005
[38]艾发.高寒地区沥青路面行为特性与设计方法研究[D].西南交通大学.2008
[39]赖友兵,王江平,王婷静.低温状态下的沥青路面受力分析[J].浙江交通职业技术学院学报.VOL.8,No.4,2007
[40]罗辉.沥青路面粘弹性相应分析及裂纹扩展研究[D].华中科技大学.2007
[42]贾志清.北方沥青路面低温抗裂形研究[D].长安大学.2006
[46]Joege C.Pais, Poulo A. A. Pereira. A Model for Pavement Temperature Prediction. Braganca Polytechnic Institute-Superior School of Management and Technology.2004
[48]Sang-Soo Kim.Direct Measurement of Asphalt Binder Thermal Cracking. Journal of Materuals in Civil Engineering.2005
[50]Andrew D. Chiasson,Cent Yavuzturk,Khaled Ksaibati. Linearized Approach for Predict-ing Thermal Stresses in Asphalt Pavement due to Environmental Conditions. Journal of Mate-rials in Civil Engineering.2008
[51]Guodong Cheng. Premafrot Studier in the Qinghai-Tibet Plateau for Road Construc-tion. Journal of Cold Regions Engineering. Vol.19,No.1,2005
[52]刘东,艾长发,刘红波,黄冰.寒冷地区沥青路面病害特征与合理结构研究综述[C].中国交通土建工程学术论文集.2006
[53]汪青春,秦宁生,张国胜,李林,赵永业.青海测器时期以来气温变化特征[J].气象科技.Vol.33,No.5,2005
[54]商亚鹏.半刚性基层沥青路面温缩性能试验及温度应力分析[D].长安大学.2008
[55]屈彦玲,杜立峰.沥青路面温度应力裂缝粘弹性有限元分析[J].路基工程.No.2,2008
[56]吴文彪.基于老化沥青混凝土松弛特性的沥青路面低温开裂研究[D].长沙理工大学.2008