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传统的滑坡监测方法存在效率低、监测不全面的特点,地面三维激光扫描仪可以高精度、高速度、非接触获得滑坡体表面的三维坐标。滑坡监测中不仅能得到单点信息,还可以获得变形面的信息。本文以郑州市西北某一滑坡监测为例,介绍了三维激光扫描滑坡监测流程和作业关键技术,阐述了三维激光扫描滑坡变形分析方法,运用点、线、面进行滑坡整体变形分析方法,得到滑坡体变形的点、线、面的滑坡变化信息,验证了该方法在滑坡监测中应用的可行性。
The traditional landslide monitoring methods have the characteristics of low efficiency and incomplete monitoring. The terrestrial 3D laser scanner can obtain the three-dimensional coordinates of the landslide surface with high precision, high speed and non-contact. Landslide monitoring can not only get a single point of information, you can also get the deformation surface information. In this paper, taking a landslide monitoring in Northwest of Zhengzhou as an example, the 3D laser scanning landslide monitoring process and key operation techniques are introduced. The method of three-dimensional laser scanning landslide deformation analysis is described. The landslide deformation is analyzed by point, line and plane. The deformation information of the landslide at the point, the line and the surface of the body is verified. The feasibility of this method in landslide monitoring is verified.