测绘通报 ›› 2026, Vol. 0 ›› Issue (2): 46-53.doi: 10.13474/j.cnki.11-2246.2026.0208

• 学术研究 • 上一篇    下一篇

京雄城际铁路沿线InSAR地表沉降监测与影响因素分析

林羊1,2,3,4, 于冰2,3,4, 田馨1, 张冠军2, 刘成2, 甘俊2, 李广宇2   

  1. 1. 东南大学交通学院, 江苏 南京 211189;
    2. 中国铁路设计集团有限公司, 天津 300251;
    3. 天津市轨道交通导航定位及时空大数据技术重点实验室, 天津 300251;
    4. 西南石油大学土木工程与测绘学院, 四川 成都 610500
  • 收稿日期:2025-06-20 发布日期:2026-03-12
  • 通讯作者: 于冰。E-mail:rs_insar_bingyu@163.com
  • 作者简介:林羊(2003—),男,硕士生,主要研究方向为InSAR技术及应用。E-mail:lin_yang08@163.com
  • 基金资助:
    天津市轨道交通导航定位及时空大数据技术重点实验室开放课题基金(TKL2024B09);四川省自然科学基金面上项目(2023NSFSC0265);国家自然科学基金面上项目(42471489)

Monitoring and influencing factors analysis of land subsidence along the Beijing-Xiong'an intercity railway using InSAR technology

LIN Yang1,2,3,4, YU Bing2,3,4, TIAN Xin1, ZHANG Guanjun2, LIU Cheng2, GAN Jun2, LI Guangyu2   

  1. 1. School of Transportation, Southeast University, Nanjing 211189, China;
    2. China Railway Design Corporation, Tianjin 300251, China;
    3. Tianjin Key Laboratory of Rail Transit Navigation and Positioning and Spatio-temporal Data Technology, Tianjin 300251, China;
    4. School of Civil Engineering and Geomatics, Southwest Petroleum University, Chengdu 610500, China
  • Received:2025-06-20 Published:2026-03-12

摘要: 为解决京雄城际铁路沿线地表沉降及其驱动因素量化研究较少、现势性不足的问题,本文采用SBAS-InSAR技术、莫兰指数和多尺度地理加权回归模型对铁路全线及周边2022年11月—2024年11月地表形变进行监测和分析。结果表明:铁路两侧4 km缓冲区垂直向最大年均形变速率为-127 mm/a,沉降主要集中在雄安站至霸州北站西侧,累计形变量空间聚集性显著;驱动因素按贡献大小排序为,水位埋深变幅、距断裂带距离、距河流距离、地表粗糙度、距道路距离。累计形变量与水位埋深变幅呈负相关,地下水抽取加剧沉降,雄安—霸州北西侧沉降与距断裂带距离呈正相关,推测牛东断裂是导致该段两侧出现沉降差异的原因。研究结果可为铁路运营维护及地下水资源管理提供科学依据。

关键词: 京雄城际铁路, SBAS-InSAR, 地表沉降, 多尺度地理加权回归, 沉降影响因素

Abstract: To address the limited quantitative research and insufficient temporal coverage of surface subsidence and its driving factors along the Beijing-Xiong'an intercity railway.The SBAS-InSAR technique,Moran's I index,and multi-scale geographically weighted regression (MGWR)model were employed to monitor and analyze surface deformation from November 2022 to November 2024.Within a 4 km buffer zone on both sides of the railway,the maximum average annual vertical deformation rate reached -127 mm/a.Subsidence was mainly concentrated west of Xiong'an Station to Bazhou North Station,showing significant spatial clustering.In order of contributions size,driving factors are groundwater level fluctuation、distance to faults、distance to rivers、surface roughness、distance to roads.Cumulative deformation was negatively correlated with groundwater level fluctuation,indicating that groundwater extraction aggravates subsidence.In the section west of Xiong'an to Bazhou North,subsidence increased with distance to faults,suggesting that the Niudong Fault may cause the observed differential settlement.These findings provide a scientific reference for railway maintenance and groundwater resource management.

Key words: Beijing-Xiong'an intercity railway, SBAS-InSAR, land subsidence, multi-scale geographically weighted regression, subsidence influencing factors

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