本文通过对某地经济技术开发区国贸大厦的沉降观测实例介绍了高层建筑变形监测的周期界定,点位与实测线路布设,以及成果分析等等的技术设计,并分析了选用仪器的精度,通过成果资料的整理与分析,掌握了国贸大厦的沉降动态趋势,结果表明该大厦的稳定性良好,从而为该大厦的安全管理提供了可靠依据[1～6]。 Based on the settlement observation example of Guomao Building in a certain economic and technological development zone, this paper introduces the technical design of cycle definition of high-rise building deformation monitoring, laying of point and measured line, analysis of results and so on, and analyzes the precision of the selected instrument, The collation and analysis of the outcome data have grasped the dynamic trend of settling down of ITC. The result shows that the stability of the building is good, which provides a reliable basis for the safety management of the building [1 ~ 6].