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利用地面三维激光扫描技术提取崩塌滑坡灾害体特征点三维坐标、虚拟断面线,建立三维模型。通过点、线、面综合分析,可获得灾害体的局部细节和整体位移量信息,实现对灾害体的变形监测。研究结果表明,三维激光扫描技术能快速、完整获取变形体变形信息,对灾害体的趋势分析更精确直观,是对传统监测技术的有效补充。
Three-dimensional laser scanning technology is used to extract three-dimensional coordinates and virtual cross-section of the landslide hazard feature points and establish a three-dimensional model. Through the comprehensive analysis of points, lines and planes, local details of disasters and overall displacement information can be obtained, and deformation monitoring of disasters can be realized. The results show that the three-dimensional laser scanning technology can quickly and completely obtain the deformation information of deformation body, and the trend analysis of disaster body is more accurate and intuitive, which is an effective supplement to the traditional monitoring technology.