摘要
利用StaMPS技术,基于2017~2021年覆盖北京首都国际机场的133景升轨和95景降轨Sentinel-1影像,对机场及周边地面沉降、机场内地裂缝稳定性等进行研究。结果显示,升降轨影像监测结果的一致性较好,在机场南部、温榆河以南区域形成沉降漏斗,漏斗内部最大沉降速率超过40 mm/a,沉降漏斗沿温榆河分布。对升降轨影像监测结果进行内符合精度验证,结果表明,90%以上公共像元的形变速率差位于±10 mm/a之间,证明了升降轨影像监测结果的一致性。特征点时序形变结果表明,金盏乡、富豪村和黄金花园小区附近沉降较严重,最大累积沉降量分别超过250 mm、150 mm和110 mm。从机场整体形变及地裂缝两侧时序和剖线结果均可看出,地裂缝两侧地表的差异形变对比明显,且差异分界线与地裂缝位置较吻合。
Using StaMPS technology,based on the images of 133 ascending orbit and 95 descending orbit covering Beijing capital international airport from 2017 to 2021,we research the ground subsidence around the airport and the stability of cracks in the interior of the site.The results show that the image monitoring results of ascending and descending orbit are in good agreement.A subsidence funnel is formed in the south of the airport and the south of the Wenyu river.The maximum deformation rate inside the funnel is over 40 mm/a,and the subsidence funnel is distributed along the Wenyu river.We verify the internal coincidence accuracy of the monitoring results of the ascending and descending orbit images.The results show that the deformation rate difference of more than 90%common pixels is between±10 mm/a,which proves the consistency of the monitoring results of the images.The time series deformation results of feature points show that the subsidence near Jinzhan township,Fuhao village and Huangjinhuayuan community is serious,and the maximum cumulative shape variables exceed 250 mm,150 mm and 110 mm,respectively.It can be seen from the overall deformation results of the airport and the time series and profile results on both sides of the ground fractures that the difference deformation of the surface on both sides of the ground fractures is significantly compared,and the boundary of the deformation difference is more consistent with the location of the ground fissures.
作者
侯祖行
杨成生
雷瑞
胡涛
王子倩
HOU Zuhang;YANG Chengsheng;LEI Rui;HU Tao;WANG Ziqian(School of Geological Engineering and Geomatics,Chang’an University,126 Yanta Road,Xi’an 710054,China;Key Laboratory of Earth Fissures Geological Disaster,MNR,700 Zhujiang Road,Nanjing 210004,China;Key Laboratory of Mineral Resources and Geological Engineering in Western China,Ministry of Education,126 Yanta Road,Xi’an 710054,China)
出处
《大地测量与地球动力学》
CSCD
北大核心
2024年第6期636-642,共7页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(42174032)
陕西省科技创新团队项目(2021TD-51)
陕西省地学大数据与地质灾害防治创新团队项目(2022)
国家重点研发计划(2021YFC3000404)
中央高校基本科研业务费专项(CHD30102262206)。
