测绘通报 ›› 2018, Vol. 0 ›› Issue (2): 120-125,141.doi: 10.13474/j.cnki.11-2246.2018.0057

• 行业观察 • 上一篇    下一篇

时间序列InSAR技术辅助下的北京市高速公路网沉降监测应用

刘冰1,2, 张永红2, 吴宏安2, 康永辉2, 姜德才2   

  1. 1. 山东科技大学, 山东 青岛 266590;
    2. 中国测绘科学研究院, 北京 100830
  • 收稿日期:2017-05-08 出版日期:2018-02-25 发布日期:2018-03-06
  • 作者简介:刘冰(1991-),女,硕士生,研究方向为合成孔径雷达干涉测量。E-mail:liubing_tx@sina.com
  • 基金资助:

    国家自然科学基金(41304010)

Subsidence Monitoring for Expressway Network in Beijing Based on Time-series InSAR Technique

LIU Bing1,2, ZHANG Yonghong2, WU Hongan2, KANG Yonghui2, JIANG Decai2   

  1. 1. Shandong University of Science and Technology, Qingdao 266590, China;
    2. Chinese Academy of Surveying and Mapping, Beijing 100830, China
  • Received:2017-05-08 Online:2018-02-25 Published:2018-03-06

摘要:

利用高分辨率TerraSAR-X影像,通过多主影像相干目标小基线干涉技术(MCTSB-InSAR)获取了北京市主城区2011-2015年的地表形变信息;通过建立缓冲区,提取并分析了北京市12条高速公路及一条快速公路的沉降现状;在高速公路沉降信息的基础上对机场第二高速进行了路面平整度分析。利用水准测量数据验证了监测结果,精度达4.6 mm/a,表明MCTSB-InSAR技术不仅可以快速监测出大区域高速公路交通网络的地表沉降,而且监测精度较高。

关键词: 多主影像相干目标小基线干涉技术, 地表沉降监测, 高速公路

Abstract:

In this paper,the ground deformation of the Beijing urban areas from 2011 to 2015 was obtained by using Multiple images Coherent Targets Small Baselines InSAR (MCTSB-InSAR)technique,with the high resolution TerraSAR-X images.By building spatial buffer,the subsidence of 12 freeways and one expressway in Beijing was extracted and analyzed.The roughness of the airport second freeway was analyzed based on the subsidence of the freeways.The monitoring results were verified with leveling data and the accuracy is 4.6 mm/a.Results demonstrated that MCTSB-InSAR technique can not only monitor the subsidence for expressway traffic network over large area,but also has high monitoring precision.

Key words: multiple images coherent targets small baselines InSAR (MCTSB-InSAR), ground subsidence monitoring, expressway

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