摘要
随着我国高速铁路网建设的迅速发展,高铁建设中的隧道沉降监测工作显得日益重要。针对传统水准监测方法空间分辨率低、成本较大的问题,本文利用短基线集时序InSAR技术对某隧道工程进行了时序形变监测,获取了2017/4—2017/10的平均沉降速率和时序形变量。根据时序监测结果重点分析了隧道工程中的地面沉降原因和规律,与实测水准结果相比表明:利用SBAS-InSAR技术进行形变监测可达到毫米级精度,两种方法所得监测结果与实际情况基本吻合。同时,证明了该技术在隧道工程沉降监测方面的可行性和可靠性,在今后具有一定的应用前景。
With the rapid development of high-speed railway network construction in our country,tunnel subsidence monitoring in high-speed railway construction is becoming more and more important.Aiming at the problems of low spatial resolution and high cost in traditional level monitoring methods,this paper uses a Small Baseline Subset technique to monitor the deformation of a tunnel project and obtain the average sedimentation rate and the time series deformation from 2017/4 to 2017/10.Compared with the results of actual measurement shows that the millimeter accuracy can be achieved by SBAS-InSAR technique,the monitoring results obtained by the two methods are basically consistent with the actual situation,and the feasibility and reliability of this technique in tunnel subsidence monitoring are proved.SBAS-InSAR also has a certain application prospects in the future.
作者
杨帆
王道顺
张磊
张子文
YANG Fan;WANG Daoshun;ZHANG Lei;ZHANG Ziwen(School of Geomatics,Liaoning Technology University,Fuxin 123000,China;Suzhou Surveying and Mapping Institute Co.,Ltd.,Suzhou 215000,China;School of Information Engineering,Guangdong University of Technology,Guangzhou 510000,China)
出处
《测绘与空间地理信息》
2019年第10期1-4,共4页
Geomatics & Spatial Information Technology
基金
辽宁省教育厅重点实验室基础研究项目(LJZS001)资助
关键词
沉降监测
短基线集
隧道
subsidence monitoring
SBAS
tunnel
