基于三维激光扫描系统的芒硝矿采空区边坡变形监测单点误差模型建立及精度分析  

作　　者：安艳东 雷壮 

机构地区：[1]四川省地质环境调查研究中心,成都610081 [2]四川省地质灾害防治工程技术研究中心,成都610081 [3]四川省华地建设工程有限责任公司,成都610081

出　　处：《科技创新与应用》2024年第18期92-95,共4页Technology Innovation and Application

摘　　要：该文主要探究三维激光扫描系统在某采空区边坡变形监测中的应用,并对边坡模型的点位精度进行计算和分析。使用Maptek I-Site三维激光扫描仪完成边坡点云数据的采集,并使用配套的Maptek I-Site Studio软件对点云数据进行拼接、滤波、精简等一系列处理,使用精简后的点云数据构建边坡曲面模型。以全站仪获取的标靶坐标数据为标准值,以三维激光扫描仪获取的标靶坐标数据为测量值,求出两者之间的真误差,进而求出观测值的点位中误差。结果表明,三维激光扫描系统测量的点位精度为IV级,仅能满足土质边坡对于水平位移监测的精度要求。This paper mainly explores the application of three-dimensional laser scanning system in the slope deformation monitoring of a goaf,and calculates and analyzes the point accuracy of the slope model.The Maptek I-Site 3D laser scanner is used to collect the slope point cloud data,and the matching Maptek I-Site Studio software is used to splice,filter and simplify the point cloud data,and the simplified point cloud data is used to construct the slope surface model.Taking the target coordinate data obtained by the total station as the standard value and the target coordinate data obtained by the three-dimensional laser scanner as the measured value,the true error between them is obtained,and then the point median error of the observed value is obtained.The results show that the point accuracy measured by the three-dimensional laser scanning system is Level IV,which can only meet the accuracy requirements of horizontal displacement monitoring of soil slope.

关 键 词：三维激光扫描系统 采空区 边坡变形监测 全站仪 精度 

分 类 号：P225.2[天文地球—大地测量学与测量工程]