测绘通报 ›› 2025, Vol. 0 ›› Issue (4): 109-113.doi: 10.13474/j.cnki.11-2246.2025.0418

• 学术研究 • 上一篇    

基于SBAS-InSAR技术的济南市地铁沿线地表沉降时空分析

周天翔1, 董景龙1,2, 沈强2,3   

  1. 1. 山东建筑大学测绘地理信息学院, 山东 济南 250101;
    2. 中国科学院精密测量科学与技术创新研究院大地测量与地球动力学国家重点实验室, 湖北 武汉 430077;
    3. 中国科学院大学地球与行星科学学院, 北京 100049
  • 收稿日期:2024-07-16 发布日期:2025-04-28
  • 通讯作者: 董景龙。E-mail:dongjinglong20@sdjzu.edu.cn
  • 作者简介:周天翔(1997—),男,硕士生,主要从事卫星数据的处理及应用研究。E-mail:2022166102@stu.sdjzu.edu.cn
  • 基金资助:
    国家自然科学基金(42374042);山东建筑大学博士科研基金(X20085Z0101)

Spatio-temporal analysis of surface subsidence along the Jinan subway line based on SBAS-InSAR technology

ZHOU Tianxiang1, DONG Jinglong1,2, SHEN Qiang2,3   

  1. 1. School of Surveying and Geo-Informatics, Shandong Jianzhu University, Jinan 250101, China;
    2. State Key Laboratory of Geodesy and Earth's Dynamics, Innovation Academy for Precision Measurement Science and Technology, CAS, Wuhan 430077, China;
    3. College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2024-07-16 Published:2025-04-28

摘要: 济南地铁在建设及运营过程中,出现了不同程度的沉降现象,开展济南地铁及周围的沉降监测对保障城市安全具有重要意义。本文以济南地铁为研究对象,利用2022年3月—2024年4月的30景Sentinel-1A影像数据,采用SBAS-InSAR技术,得到济南地铁1、2、3号线的形变信息;结合Peck公式,对所得结果进行建模,并探究沉降槽的变化特征。结果表明:济南轨道交通沿线呈现不同程度的形变;空间上,东部、中部地区地铁较为稳定,其中3号线二区最不稳定,遥墙机场站附近的沉降最为大,最大年均形变速率为-66 mm/a;时间上,地铁建设期间沉降量大于运营期间沉降量,玉符河站、历山路站、川流站、遥墙机场站附近沉降槽在中心处的沉降呈现逐渐增大的趋势,沉降槽半径分别为174、151、171、350 m。

关键词: 济南地铁, 地面沉降, SBAS-InSAR, Peck公式

Abstract: In the process of construction and operation of Jinan subway, there are different degrees of subsidence, and it is of great significance to carry out subsidence monitoring in Jinan subway and its surroundings to ensure urban safety. In this paper, the deformation information of Jinan subway Lines 1, 2, and 3 is obtained by using SBAS-InSAR technology from 30 Sentinel-1A image data from March 2022 to April 2024. Combined with the Peck formula, the obtained results are modeled, and the variation characteristics of the settlement trough are explored. The results show that there are different degrees of deformation along the Jinan rail transit, and spatially, the subway in the eastern and central regions is relatively stable, and Line 1 is the most stable. The settlement near Yaoqiang airport station is the largest, with a maximum average annual deformation rate of -66 mm/a. In terms of time, the settlement during the construction of the subway is greater than that during the operation, and the settlement of the settlement trough near Yufuhe station, Lishan road station, Chuanliu station and Yaoqiang airport station in the center shows a gradual increasing trend. The radii of the settlement trough are 174, 151, 171 and 350 m, respectively.

Key words: Jinan subway, land subsidence, SBAS-InSAR, Peck formula

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