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沥青路面热-荷载耦合应力数值分析

, PP. 15-19

Keywords: 道路工程,开级配大粒径沥青碎石混合料,数值分析,热-荷载耦合应力,反射裂缝,路用性能

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Abstract:

针对半刚性基层沥青路面和刚性基层沥青路面结构中普遍存在的反射裂缝问题,提出了采用开级配大粒径沥青碎石混合料(OLSM)作为裂缝缓解层的方法;利用三维有限元法,对设置普通沥青混凝土与开级配大粒径沥青碎石2种类型裂缝缓解层的贫混凝土基层沥青路面结构进行热-荷载耦合应力对比分析,并进行了试验路观测与理论计算分析。结果表明OLSM的耦合应力明显小于普通沥青混凝土的应力;OLSM中大粒径矿料多、沥青含量少及空隙率大的结构特点有利于消解及吸收裂缝处路面应力,可有效防止或减缓贫混凝土基层沥青路面的反射裂缝,是一种可以缓解反射裂缝的有效材料。

References

[1]  Baoshan H.Fundamental characterization and numerical simulation of large stone asphalt mixes[D].Louisiana:Louisiana State University,2000.
[2]  Brown E R,Bassett C E.Effects of maximum aggregate size on rutting potential and other properities of asphalt-aggregate mixtures[J].TRR,1990(1259):107-119.
[3]  付其林.开级配大粒径沥青碎石组成设计及路用性能研究[D].西安:长安大学,2008.
[4]  许爱丽,魏连雨,张炜萍,等.大粒径沥青碎石基层沥青路面力学分析[J].河北工业大学学报,2007,36(6):115-118. XU Ai-li,WEI Lian-yu,ZHANG Wei-ping,et al.Mechanics analysis of large stone asphalt treated base[J].Journal of Hebei University of Technology,2007,36(6):115-118.
[5]  王松根,房建果,王 林,等.大碎石沥青混合料柔性基层在路面补强中的应用研究[J].中国公路学报,2004,17(7):10-15. WANG Song-gen,FANG Jian-guo,WANG Lin,et al.Study of the use of large stone asphalt mixes in the flexible base courses to reinforce pavements[J].China Journal of Highway and Transport,2004,17(7):10-15.
[6]  王恩东,张洪亮,王选仓.MAC 改性沥青大粒径透水性沥青混合料试验研究[J].交通运输工程学报,2008,8(6):6-12. WANG En-dong,ZHANG Hong-liang,WANG Xuan-cang.Experimental research of MAC modified large stone porous asphalt mixture[J].Journal of Traffic and Transportation Engineering,2008,8(6):6-12.
[7]  石亦平,周玉蓉.ABAQUS有限元分析实例详解[M].北京:机械工业出版社,2006.
[8]  王秉刚,邓学钧.路面力学数值计算[M].北京:人民交通出版社,1992.
[9]  杨 斌,陈拴发,马庆雷,等.特粗粒径沥青碎石裂缝缓解层防裂机理分析[J].公路,2001(1):74-78. YANG Bin,CHEN Shuan-fa,MA Qing-lei,et al.Anti-cracking mechanism analysis of cracking relief layer of extra coarse asphalt macadam [J].Highway,2001(1):74-78.
[10]  虞将苗,李晓军,王端宜,等.基于计算机层析识别的沥青混合料有限元模型[J].长安大学学报:自然科学版,2006,26(1):16-19. YU Jiang-miao,LI Xiao-jun,WANG Duan-yi,et al.Finite element modeling of asphalt mix with X-ray computerized tomograph processing [J].Journal of Chang'an University:Natural Science Edition,2006,26(1):16-19.
[11]  陈拴发,彭 ?,王松根,等.贫混凝土基层沥青路面荷载应力有限元分析[J].长安大学学报:自然科学版,2007,27(6):1-5. CHEN Shuan-fa,PENG Chong,WANG Song-gen,et al.Finite element analysis of stress caused by load on lean concrete-asphalt overlays composite pavement[J].Journal of Chang'an University:Natural Science Edition,2007,27(6):1-5.
[12]  王朝辉,王选仓.基于沥青加铺层结构疲劳寿命的夹层位置确定[J].中国公路学报,2008,21(1):29-34,58. WANG Chao-hui,WANG Xuan-cang.Interlayer position ascertainment based on fatigue life of asphalt overlay structure[J].China Journa1 of Highway and Transport,2008,21(1):29-34,58.
[13]  贾锦绣,韩 森,徐鸥明.沥青稳定碎石混合料的抗剪性能[J].长安大学学报:自然科学版,2009,29(3):23-26. JIA Jin-xiu,HAN Sen,XU Ou-ming.Anti-shearing performance of asphalt treated base mixtures[J].Journal of Chang'an University:Natural Science Edition,2009,29(3):23-26.
[14]  周庆华,沙爱民.沥青高温流变评价指标对比[J].交通运输工程学报,2008,8(1):27-30,35. ZHOU Qing-hua,SHA Ai-min.Comparison of high-temperature rheological evaluation indices for bitumen[J].Journal of Traffic and Transportation Engineering,2008,8(1):27-30,35.

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