【摘 要】
：
在我国机场道面平整度评价体系中,针对早年多采用3m直尺下最大间隙平均值而目前多采用国际平整度指数(IRI)的问题,提出了一种延续机场道面平整度评价的历史资料信息的有效途
【机 构】
：
同济大学 道路与交通工程教育部重点实验室,上海,201804上海市市政规划设计研究院有限公司,上海,200031;
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在我国机场道面平整度评价体系中,针对早年多采用3m直尺下最大间隙平均值而目前多采用国际平整度指数(IRI)的问题,提出了一种延续机场道面平整度评价的历史资料信息的有效途径.建立了IRI的Simulink快速求解流程,开发了3 m直尺下最大间隙平均值的计算程序,提出了一种IRI和3 m直尺下最大间隙值的相关性研究方法.基于世界范围内37条机场跑道和37条机场滑行道的纵断面数据,统计分析了两个指标之间的相关程度以及受不同分段间隔的影响.结果表明:跑道的两者线性相关系数高达0.96,滑行道的线性相关系数高达0.97,且分段间隔的取值对相关程度影响较小;IRI分别为3 m直尺下最大间隙平均值的0.86倍和0.93倍关系.探究了两个指标对道面波长的敏感性.结果表明:3 m直尺下最大间隙平均值的敏感波长为0.5～4 m的短波,与IRI的敏感波长1～5 m短波非常接近;敏感波长相似使得无论是在机场跑道还是滑行道,IRI和3 m直尺下最大间隙的平均值之间都呈现高度线性相关.本研究可为机场道面的性能预测提供更多的基础样本,制订更科学合理的道面养护维修对策.
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