基于三维激光扫描技术的边坡监测应用研究

Application Research on Slope Monitoring Based on 3D Laser Scanning Technology

在边坡监测中,三维激光扫描技术具有自动化程度高、监测效率高、数据精度可靠、受外部条件限制较小等特点。文章利用三维激光扫描技术精确获取了高危边坡的激光点云数据,并构建具有真实纹理的三维边坡模型,通过两次不同三维边坡模型变形分析,监测并总结了边坡滑坡体的总体变形演化规律。为了验证监测精度,采用全站仪对点位同步进行观测的方式,与三维激光扫描技术监测精度进行对比分析发现,最大的较差在5cm左右,总体结果能基本满足精度要求。

In slope monitoring,3D laser scanning technology has the merits of high automation,high monitoring efficiency,reliable data accuracy,and less restriction by external conditions.This article,constructs a three-dimensional slope model with real textures through the laser point cloud data of high-risk slopes obtained by 3D laser scanning technology.The overall deformation evolution law of the slope landslide is monitored and summarized by analyzing two different 3D slope models.In order to verify the monitoring accuracy,a total station was used for synchronous observation of points.Compared with the monitoring accuracy of 3D laser scanning technology,the maximum difference was found to be around 5cm,which can basically meet the accuracy requirements.