摘要:如今，随着轨道交通建设的发展，对于轨道安全的要求也日益提高。因为在轨 道交通运营阶段影响因素复杂、时间跨度大，一旦隧道发生了一定程度上的较大形变，就 很可能威胁到地铁的运营安全，所以隧道的形变检测对于轨道的维护运营就显得十分重 要。66274

本课题旨在研究基于激光雷达的隧道检测方法，通过调研和比对现有的隧道检测技术 及设备，结合隧道形变检测方面的要求，有针对性的进行激光雷达性能指标分析、检测方 法研究及设备选型。本课题采用激光雷达扫描的方法，通过旋转获取二维信息，再通过匀 速沿隧道中轴移动获取隧道的横截面信息。再对隧道进行整体形变法和局部形变法分析， 就能够分析得出隧道在自然环境中受到复杂因素所形成压迫、横移或者沉降等形变的类 型。

毕业论文关键词：形变检测；隧道断面；全圆分析法；隧道中轴；曲线拟合

Research on Laser Radar Tunnel Detection Method

Abstract: Today, with the development of rail transit construction, the requirements for track safety are also increasing. Because the influencing factors in the rail transit operation are complicated and the time span is large, if the tunnel is deformed to a certain extent, it is likely to threaten the operation safety of the subway. Therefore, the inspection of the tunnel is very important for the maintenance operation of the track.

The purpose of this study is to study the tunneling detection method based on lidar. By investigating and comparing the existing tunnel detection technology and equipment comparison, combined with the requirements of tunnel deformation detection, the performance of the lidar is analyzed and the detection method is studied And equipment selection. In this paper, the three-dimensional cross-sectional information of the tunnel is obtained by moving the two-dimensional information through the laser radar scanning method, and then moving the vehicle along the center axis of the tunnel. And then the overall deformation of the tunnel or local deformation analysis, you can analyze the tunnel in the natural environment by the complex factors formed by the oppression, traverse or settlement and other deformation types.

Key words: 3D deformation detection; full circle analysis; full circle analysis method; funnel section; funnel axis; curve fitting

目录

1 绪论 3

1.1  课题的目的和意义 3

1.2  国内外研究现状与水平 3

1.2.1  国外研究现状与水平 3

1.2.2  国内研究现状与水平 4

1.3  发展趋势 4

1.4  本文的研究方法和论文组织 4

1.4.1  本文的研究方法 4

1.4.2  论文组织 5

2 比对现有的隧道检测方法 6

2.1  现有的隧道检测方法 6

2.1.1  激光检测法 6

2.2.2  雷达检测法 6

2.2.3  摄像设备检测法 7

2.2  检测方法比对 7

2.2.1  激光检测的特性 7

2.2.2  雷达检测的特性 7

2.2.3  摄像设备检测的特性 7

2.3  实验设计的检测方法选用