摘要
三维激光扫描技术具有易操作、高精度、低成本的优势,逐渐广泛的应用于各项工程测绘及监测领域。本文以广东省广州市地铁1号线某段为监测对象,经过两期次监测,通过计算、分析,认为隧洞水平方向最大位移量为6.1 mm,垂直方向最大位移量为2.6 mm,且具有垂直方向形变量大于水平方向形变量的特征。实践表明,将三维激光扫描技术应用于城市隧洞形变监测中,不仅可以获得隧洞整体形变特征,而且能够获得精确的形变量信息,为城市隧洞形变治理提供可靠的依据。
The 3D laser scanning technology has the advantages of easy operation, high precision and low cost, and is gradually widely used in various engineering mapping and monitoring fields. In this paper, a section of the subway line 1 in Guangzhou, Guangdong Province is monitored, after two periods of monitoring, through calculation and analysis, it is concluded that the maximum displacement of the horizontal direction of the tunnel is 6.1 mm, the maximum displacement in the vertical direction is 2.6 mm, and the characteristics of the vertical direction variable is greater than the horizontal direction variable. The practice shows that the application of 3D laser scanning technology to the monitoring of the deformation of the tunnel in the city can not only obtain the overall deformation characteristics of the tunnel, but also obtain accurate shape variable information, which can provide a reliable basis for the control of urban tunnel deformation.
作者
李建刚
LI Jiangang(The Institution of Geological Surveying and Mapping of Zhejiang Province, Hangzhou Zhejiang 310030, China)
出处
《北京测绘》
2020年第1期83-86,共4页
Beijing Surveying and Mapping
关键词
三维激光扫描技术
城市隧洞
形变监测
three dimensional(3D) laser scanning technology
city tunnel
deformation monitoring
