微变形雷达系统超高层建筑物变形监测

Deformation Monitoring of Super High-rise Buildings in Micro-deformation Radar System

对超高层建筑物进行变形监测掌握其形变规律,是建筑物安全施工与运营的重要保障。微变形雷达系统集成SFCW技术与干涉测量技术,可实现监测目标的连续变形监测。本文利用IBIS-S系统对国内某超高层建筑物进行连续变形监测,并结合时序InSAR技术提取监测过程中该大楼的形变信息。试验结果表明,在监测时段内楼顶处的最大形变摆幅为4.96 mm,且精度达亚毫米级;微变形雷达系统可实现超高层建筑物的高精度连续动态变形监测与分析,但监测精度会随监测距离的增加而逐渐降低。

Monitoring deformation of super high-rise buildings to master the deformation law is an important guarantee for building safety construction and operation. Micro-deformation radar system integrates SFCW technique and interferometry technique,which can realize continuous deformation monitoring for monitoring targets. In this paper,the IBIS-S system was used to monitor the continuous deformation of a high-rise building in China,and the deformation information of the building during the monitoring process was extracted with the time series In SAR technique. The experimental results showed that the maximum deformation amplitude at the top of the building were 4.96 mm during the monitoring period,and the accuracy reached submillimeter level.Micro-deformation radar system can realize high accuracy continuous dynamic deformation monitoring and analysis of super high-rise buildings,but the monitoring accuracy gradually decreases with increasing monitoring distance.