三维激光扫描技术运用于隧道断面变形测量

随着人们对隧道建筑安全意识的不断提升,基于原有的隧道断面变形测量方法测量精度较低的问题,设计基于三维激光扫描技术的隧道断面变形测量方法。采用三维激光扫描仪进行隧道断面信息获取,并通过获取到的信息构建断面坐标系。通过点云计算完成断面信息数据的预处理,采用坐标系变换、点云信息分离、信息滤波以及信息去噪完成预处理过程。基于对隧道断面变形形式的过往研究,选择椭圆方程完成对隧道断面变形测量的控制。至此,基于三维激光扫描技术的隧道断面变形测量方法完成。设计对比实验,与原有测量方法相比,此方法的测量图像与样本图像更为相似。因而,此方法在隧道的测量中更有效,效果更加优越。

3D Laser Scanning Technique is Applied to the Measurement of Tunnel Section Deformation

With the continuous improvement of people’s awareness of the safety of tunnel buildings,based on the problem of low measurement accuracy of the original tunnel section deformation measurement method,a tunnel section deformation measurement method based on 3D laser scanning technology is designed.3D laser scanner is used to obtain the tunnel section information,and the section coordinate system is constructed by the obtained information.The pre-processing of section information data is completed by point cloud computing,and the pre-processing process is completed by coordinate transformation,point cloud information separation,information filtering and information denoising.Based on the past research on the deformation form of tunnel section,the elliptic equation is selected to control the deformation measurement of tunnel section.Thus,the tunnel section deformation measurement method based on 3D laser scanning technology is completed.Compared with the original measurement method,the measurement image of this method is more similar to the sample image.Therefore,this method is more effective and effective in tunnel measurement.