| 刚性基层长寿命沥青路面抗反射裂缝力学分析 |
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| 引用本文： | 凌天清,赖辉,韦刚,郑智能,高建. 刚性基层长寿命沥青路面抗反射裂缝力学分析[J]. 重庆交通大学学报(自然科学版), 2010, 29(5) |
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| 作者姓名： | 凌天清 赖辉 韦刚 郑智能 高建 |
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| 作者单位： | 重庆交通大学,山区道路结构与材料重庆市重点实验室,重庆,400074;重庆高速公路集团有限公司,北方公司,重庆,401147 |
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| 基金项目： | 重庆市交通委员会重点科技项目(200707) |
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| 摘 要： | 刚性基层长寿命沥青路面沥青层底部的反射裂缝,是由水泥混凝土板接缝处应力集中导致沥青面层底部应力过大引起的。应用Abaqus有限元软件计算车辆荷载作用下沥青层底部接缝处的应力状态,分析了应力吸收层类型、车辆轴载、接缝宽度、沥青面层厚度与模量、水泥混凝土基层厚度与模量、基础模量等因素对延缓反射裂缝的影响。
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| 关 键 词： | 道路工程 长寿命路面 刚性基层 反射裂缝 应力 Abaqus |
Mechanic Analysis on Defending Reflective Crack of Perpetual Asphalt Pavement with Rigid Base |
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| LING Tian-qing,LAI Hui,WEI Gang,ZHENG Zhi-neng,GAO Jian. Mechanic Analysis on Defending Reflective Crack of Perpetual Asphalt Pavement with Rigid Base[J]. Journal of Chongqing Jiaotong University, 2010, 29(5) |
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| Authors: | LING Tian-qing LAI Hui WEI Gang ZHENG Zhi-neng GAO Jian |
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| Affiliation: | LING Tian-qing1,LAI Hui1,WEI Gang2,ZHENG Zhi-neng1,GAO Jian2(1.Chongqing Key Laboratory of Mountain Road Structure & Materials,Chongqing Jiaotong University,Chongqing 400074,China,2.Northern Corporation,Chongqing Expressway Group Co.Ltd,Chongqing 401147,China) |
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| Abstract: | What causes the reflective cracking at the bottom of asphalt layer on perpetual asphalt pavement with rigid base is the excessive stress of the bottom of asphalt surface caused by the contact of the cement concrete stress concentration.The Abaqus finite element software is utilized to calculate the stress state of the bottom seam of asphalt layer under the action of vehicles' load.Meanwhile,the influence of delaying reflective cracking is analyzed by using the influence factors,such as different stress abso... |
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| Keywords: | road engineering perpetual pavement rigid base reflective crack stress Abaqus |
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