摘要
飞机跑道是保证飞机安全飞行的重要基础设施,一旦发生形变,将会对机场的安全运营造成重大影响。文山砚山机场位于云南省东部石灰岩地区,地质条件极不稳定,传统的形变监测技术难以对其进行长期连续的形变监测。本文基于InSAR技术,选取2020年1月至2024年1月共60景Sentinel-1A SAR数据,分别采用SBAS-InSAR与PS-InSAR技术提取云南文山砚山机场跑道的形变信息,并将两种方法得到的结果进行交叉验证,分析机场跑道地表形变的时空变化特征以及发生形变的原因。研究结果表明:(1)SBAS-InSAR与PS-InSAR反演的结果基本是一致的,证明SBAS-InSAR技术得到的机场形变信息是可靠的,可用于后续的分析研究;(2)文山砚山机场跑道在近4 a以来存在着不均匀沉降,其中机场跑道中心位置出现了抬升,在跑道首部位置、尾部位置及航站楼的位置出现了一定的沉降,使得机场跑道呈现出中间高、四周低的现象,该机场最大的抬升速率为9.99 mm/a,最大沉降速率为-4.76 mm/a,最大抬升量为33.5 mm,最大沉降量为-24.3 mm。研究结果说明SBAS-InSAR技术在机场跑道的形变监测中是适用的,可为机场的管理维护和安全运行提供准确的数据参考和科学的决策依据。
The runway is an important infrastructure to ensure the safe flight of aircraft.Once the deformation occurs,it will have a great impact on the safety operation of the airport.Wenshan Yanshan Airport is located in the limestone area of eastern Yunnan Province,the geological conditions are extremely unstable,and it is difficult to carry out long-term continuous deformation monitoring of the airport by traditional deformation monitoring technology.Based on InSAR technology,this study selected a total of 60 Sentinel-1A SAR data from January 2020 to January 2024,and used SBAS-InSAR and PS-InSAR technologies to extract the runway deformation information of Wenshan Yanshan Airport,Yunnan Province,respectively,and cross-verified the results obtained by the two methods.This paper analyzes the spatiotemporal characteristics of airport runway surface deformation and the causes of deformation.The results show that①the inversion results of SBAS-InSAR and PS-InSAR are basically consistent,which proves that the airport deformation information obtained by SBAS-InSAR technology is reliable and can be used for subsequent analysis and research;②The runway of Wenshan Yanshan Airport has had uneven settlement since nearly 4 a,in which the center of the runway has risen,and certain settlement has occurred at the head,tail and terminal of the runway,resulting in a phenomenon that the runway is higher in the middle and lower on all sides.The maximum uplift rate of the airport is 9.99 mm/a.The maximum sedimentation rate is-4.76 mm/a.The maximum uplift is 33.5 mm and the maximum settlement is-24.3 m.This study shows that SBAS-InSAR technology is suitable for airport runway deformation monitoring,which can provide accurate data reference and scientific decision basis for airport management,maintenance and safe operation.
作者
梅慧慧
周京春
刘勇
MEI Huihui;ZHOU Jingchun;LIU Yong(Faculty of Geography,Yunnan Normal University,Kunming 650500,China)
出处
《测绘通报》
CSCD
北大核心
2024年第S02期211-216,共6页
Bulletin of Surveying and Mapping
