摘要
高速公路改扩建工程路面测量需达到平面5cm,高程2cm的精度要求,采用传统的测量技术,不仅难以达到精度要求,而且效率低下,作业人员安全难以保证。结合高速公路改扩建勘测设计的特点和精度要求,以京藏高速公路改扩建项目为例,对机载LiDAR技术进行了深入研究,提出了采用直升机搭载LiDAR设备进行路面高精度点云数据获取,并对点云数据平面位置和高程的精化处理方法进行了分析,得出结论。
The pavement measurement of the highway reconstruction and expansion project needs to reach the accuracy of 5 cm in plane and 2 cm in elevation.It is difficult to meet the accuracy requirements for traditional measurement technology,the efficiency of which is low,and the safety of operators is hard to be guaranteed.Considering the characteristics and accuracy requirements of highway reconstruction and expansion survey,the airborne LiDAR technology is studied based on the reconstruction and expansion project of Beijing-Tibet Expressway.And using helicopters equipped with LiDAR equipment is proposed for high-accuracy point cloud data acquisition.The refined processing methods of point cloud data plane position and elevation are analyzed,and some useful conclusions are drawn.
作者
廉福绵
LIAN Fumian(CCCC Highway Consulants Company Limited,Beijing 100088,China)
出处
《江西测绘》
2020年第1期23-26,共4页
JIANGXI CEHUI
关键词
高速公路
改扩建
激光雷达(LiDAR)
靶标控制点
Highway
Reconstruction and Extension
Light Detection And Ranging(LiDAR)
Ground Target Control Points
作者简介
廉福绵(1981-),男,本科,高级工程师,主要从事道路勘察设计方面的技术和管理工作。E-mail:553040037@qq.com
