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针对城市高耸建筑物倾斜观测作业时间长、信息量少的问题,将三维激光扫描技术应用到城市高耸建筑物变形监测领域,探讨对无观测标志、不可或不便攀登的城市高耸建筑物进行倾斜观测的施测方法。以龙柱为例,制定了可行的测量方案,并采用高斯曲面拟合算法对其表面进行拟合,精确计算出龙柱的倾斜量,且与全站仪倾斜观测结果进行对比。结果表明,该方法可以快速、全面的获取观测对象的整体信息,且能够满足高耸建筑物倾斜观测的精度要求。
In view of the problem of long time tilt-down observation of urban towering buildings and small amount of information, the application of 3D laser scanning technology to the deformation monitoring of tall buildings in urban areas is discussed, and the inclination observation of urban towering buildings with no observation signs and inconvenient climbing is discussed The method of measurement. Taking the dragon-pillar as an example, a feasible measurement scheme was developed, and the Gaussian surface fitting algorithm was used to fit the surface. The tilt of the dragon-pillar was accurately calculated and compared with the total station tilt observation results. The results show that this method can obtain the overall information of observation objects quickly and comprehensively, and can meet the precision requirements of tilt observation of towering buildings.