摘要
对地基合成孔径雷达干涉测量(GBInSAR)技术的监测原理和特点进行了深入研究;并利用该技术和全站仪对南京清凉门大桥进行了监测,将桥梁在雷达视线向的变形转化为桥梁本身垂直面真实的位移。通过对监测结果的计算分析可知,GBInSAR技术的监测精度可达到0.1 mm;再将监测结果与桥面通行情况进行对比可知,清凉门大桥的变形量主要是由桥面荷载引起的,大桥处于稳定状态。
This paper proposed the monitoring principles and characteristics of GBInSAR technology at first. And then, the paper used GBInSAR technology and total station to monitor the Nanjing Qingliangmen Bridge, and converted the deformation in the radar line of sight to the vertical displacement of the bridge. Through calculation and analysis of the monitoring results, the result showed that this method's monitor precision could reach 0.1 mm. It could be seen that the deformation of the bridge was mainly caused by the deck load by comparing the monitoring results with the bridge traffic situation.The bridge is in a steady state.
出处
《地理空间信息》
2017年第7期97-98,共2页
Geospatial Information
基金
湖南省重点实验室开放研究基金资助项目(PHLHD201311)
