华南理工大学学报(自然科学版) ›› 2018, Vol. 46 ›› Issue (11): 142-149,156.doi: 10.3969/j.issn.1000-565X.2018.11.019

• 交通运输工程 • 上一篇    下一篇

三维激光数据密度对路面构造深度检测影响分析

惠冰1,2,3 郭牧1 刘晓芳1   

  1. 1. 长安大学 公路学院,陕西 西安 710064; 2. 长安大学特殊地区公路工程教育部重点实验室,陕西 西安 710075;3. 中交通力建设股份有限公司,陕西 西安 710075
  • 收稿日期:2018-02-01 修回日期:2018-06-16 出版日期:2018-11-25 发布日期:2018-10-02
  • 通信作者: 惠冰( 1982) ,男,博士,副教授,主要从事路面检测与养护管理研究 E-mail:82628532@qq.com
  • 作者简介:惠冰( 1982) ,男,博士,副教授,主要从事路面检测与养护管理研究
  • 基金资助:
    国家自然科学基金项目;内蒙古自治区交通运输科技项目;陕西省自然科学基金项目

Effect of 3D Laser Data Scanning Density on Pavement Macrotexture Depth Measurement

HUI Bing1,2,3 GUO Mu1 LIU Xiaofang1   

  1. 1. School of Highway,Chang’an University,Xi’an 710064,Shaanxi,China; 2. Key Laboratory of Highway Engineering in Special Areas of the Ministry of Education,Xi’an 710075,Shaanxi,China; 3. China Communications Tongli Construction Co. ,Ltd. ,Xi’an 710075,Shaanxi,China
  • Received:2018-02-01 Revised:2018-06-16 Online:2018-11-25 Published:2018-10-02
  • Contact: Bing Hui,惠冰( 1982) ,男,博士,副教授,主要从事路面检测与养护管理研究 E-mail:82628532@qq.com
  • About author:惠冰( 1982) ,男,博士,副教授,主要从事路面检测与养护管理研究
  • Supported by:
    The National Natural Science Foundation of China( 51508034)The Natural Science Foundation of Shaanxi Province( 2017JM5130) 

摘要: 为研究三维激光检测技术的数据密度对面域构造深度检测结果可靠性的影响,利用三维激光室内检测系统获取了AC10、AC13和AC16三类沥青混合料试件表面三维数据,计算了16种激光数据密度下的MTD指标,分析了激光数据密度对MTD计算结果的影响规律。结果表明:三维激光检测技术测量沥青路面构造深度MTD指标的可靠性较高;当激光数据密度由0.5mm×0.5mm下降到5mm×5mm时,3类沥青混合料试件的MTD均值最大下降了36.52%,标准差增大到0.543mm。同时,仅改变激光数据密度的单方向间距,对MTD计算结果影响不显著。三类沥青混合料试件的MTD与激光数据密度的下降比例间呈明显对数相关性,相关系数均在0.95以上。并且粒径越大的混合料类型路面受激光数据密度变化的影响更大。

关键词: 道路工程, 抗滑性能, 构造深度, 三维激光技术, 激光数据密度

Abstract: In order to study the effect of 3D laser data scanning density on the measurement results when the 3D laser technology is applied to acquire the asphalt pavement mean texture depth (MTD). Using 3D laser Laboratory Testing System, to capture the surface data of asphalt pavement specimens involved AC10、AC13、AC16, considering 16 combinations types of scanning density to calculate the results of MTD on several laser scanning density, and the influence of 3D laser data scanning density on the result of MTD was analyzed. The results show that:3D laser scanning technology has a good reliability on MTD calculation of asphalt pavement; when the laser data scanning density drop from 0.5mm×0.5mm to 5mm×5mm, the MTD averages among three types asphalt pavement specimens declined the most with a 36.52% drop, and the variation coefficient increases to 0.543mm. In addition, only change the direction interval of laser data scanning density is not significant to the results of MTD calculation. There is a significant logarithmic correlation between the MTD of the three types of asphalt pavement and the drop ratio of the laser data density, and the correlation coefficient is above 0.95. The pavement with larger particle size is more affected by the change of laser data scanning density.

Key words: road pavement engineering, anti-skid performance, texture depth, 3D laser scanning technology, laser data scanning density

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