超薄沥青路面早期损害裂缝和车辙的特点分析 |
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引用本文: | 苏婷婷,呙润华,林俊舟,李红学,乔小兵,刘剑,赵恒.超薄沥青路面早期损害裂缝和车辙的特点分析[J].武汉水运工程学院学报,2014(1):176-180. |
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作者姓名: | 苏婷婷 呙润华 林俊舟 李红学 乔小兵 刘剑 赵恒 |
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作者单位: | [1]清华大学土木系,北京100084 [2]中国建筑股份有限公司,北京100000 |
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摘 要: | 根据非洲刚果(布)国家一号公路实地实验数据,采用M EPDG软件进行建模,在实际荷载水平及路面材料性质下,分析超薄沥青路面早期病害的原因,变化各层材料弹性模量和厚度,对车辙深度和疲劳裂缝等指标对结构强度和早期损害的影响,取95%保证率下符合可靠性要求的结果。进一步分析路面结构对高交通增长率的抵抗能力强弱,提出针对降低超薄沥青路面早期损害的措施。
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关 键 词: | 道路工程 超薄沥青 路面结构 早期损害 裂缝 车辙 |
Early Damage of Cracks and Rutting Analysis in Ultra-thin Asphalt Pavement |
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Authors: | SU Tingting GUO Runhua LIN Junzhou LI Hongxue QIAO Xiaobing LIU Jian ZHAO Heng |
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Institution: | 1 Department of Civil Engineering, Tsinghua University, Beijing 100084, China;2 China State Construction Engineering, Beijing 100000, China) |
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Abstract: | The ultra-thin asphalt pavement ow ns distinctive early stage disease such as early significant cracks and rutting since it has a thin surface layer compared to traditional pavement structure .The re-search establishes models to simulate National Highway 1 in Congo (Brazzaville) by MEPDG soft-ware .Considering load level and pavement material properties ,the research analyzes the reason of early disease in ultra-thin asphalt pavement .By adjusting the key factors of modulus and thickness of each layer ,the simulation arrives at the 95% reliability requirements of pavement structural strength such as top-down cracks and down-top cracks and rutting .The research also proves the performance of various pavement structure to resist high traffic growth rate ,and draw s conclusions about reasona-ble indicator trends of ultra-thin asphalt pavement . |
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Keywords: | road engineering ultra-thin asphalt pavement structure early stage disease cracking rutting |
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