三维激光扫描技术在市政道路工程中的应用

Application of 3D Laser Scanning Technology in Municipal Road Engineering

在市政道路工程中,传统的地形测量方式工作效率较低,外业测量人员工作强度大。三维激光扫描技术具有扫描速度快、高分辫率、非接触式测量优势,能够快速完整的记录被测物体表面的复杂纹理。将三维激光扫描技术应用于地形测绘可以减轻外业工作量有效提高外业测量的工作效率。结合三维激光扫描系统的组成和工作原理,优化点云数据的处理过程和方法,研究了三维激光扫描技术在市政道路工程测量应用中的技术特性,并结合工程案例析了实现过程和效果。研究表明,利用激光三维扫描技术获取的空间点云数据,可以快速生成满足工程设计所需要的地形图,以及纵横断面等产品,能有效提高外业测量工作效率。

In the municipal road engineering, the traditional topographic measurement is low effective and the field measurement work intensity is large. The 3D laser scanning technique has the advantages of fast scanning speed, high resolution and non-contact measurement, and can quickly completely record the complex texture of the surface of the measured object. The application of 3D laser scanning technology in the topographic surveying and mapping can reduce the field workload and effectively improve the efficiency of field measurement. Combined with the composition and working principles of 3D laser scanning system, this paper optimizes the processing procedure and method of point cloud data, studies the technical characteristics of 3D laser scanning technology used in municipal road engineering measurement, and analyzes the implementation process and effects with engineering examples. The study results show that the spatial point cloud data achieved by 3D laser scanning technology can quickly generate the topographic map, and the vertical and horizontal sections required for the engineering design, and can effectively improve the field measurement efficiency.