3维激光扫描技术在地铁调线调坡测量中的应用

The Application of 3D Laser Scanning Technology in Subway Route Adjustment of Alignment and Gradient Measurement

主要对3维激光扫描技术应用于地铁调线调坡的关键技术进行了研究,探讨了基于此技术的点云数据获取的流程和断面数据提取的方法。以天津地铁三号线的一段区间调线调坡测量为例,同时使用3维激光扫描技术和传统技术进行调线调坡测量,并对实测数据进行了对比。结果表明,3维激光扫描技术应用于地铁调线调坡测量方法具有作业效率高、可靠性大、实用性强等特点,可以应用于地铁调线调坡测量。

The paper mainly studies the key technology of 3D laser scanning technology applied in subway adjustment of route alignment and gradient, investigates the acquisition process of point cloud data and extraction method for cross - section data based on this technology. The paper takes the route adjustment of alignment and gradient measurement in a range of Tianjin subway line 3 as an example and uses both 3D laser searming technology and traditional techniques to compare the measured data. The results showe that the method using 3D laser scanning technology applied in subway route adjustment of alignment and gradient t is with characteristics of high efficiency, reliability, practicality and it can be used in subway route adjustment of alignment and gradient measurement.