CAJ | 학술논문

本文利用永久散射体干涉测量技术，对北京地铁15号线周边的遥感影像进行了 PS 点选取、差分干涉图的生成、相位回归分析以及精密基线计算等一系列处理，获取研究区沉降信息，用克里格插值的方法对沉降结果进一步处理，得到连续的沉降速率。根据地铁沿线沉降情况与地铁沿线沉降速率剖面图，分析区域不均匀沉降对地铁轨道曲率半径的影响，并从沉降监测、线路设计、施工维护等方面提出相应的对策来防范地面沉降，保障地铁运营安全。
본문이용영구산사체간섭측량기술，대북경지철15호선주변적요감영상진행료 PS 점선취、차분간섭도적생성、상위회귀분석이급정밀기선계산등일계렬처리，획취연구구침강신식，용극리격삽치적방법대침강결과진일보처리，득도련속적침강속솔。근거지철연선침강정황여지철연선침강속솔부면도，분석구역불균균침강대지철궤도곡솔반경적영향，병종침강감측、선로설계、시공유호등방면제출상응적대책래방범지면침강，보장지철운영안전。
Land subsidence is a lowering of the ground and water level phenomenon in a certain surface area.It is a slowly varying geological disaster,and it has threatened the urban transportation infrastructure,especially the safety of subway operation.This paper uses the permanent scatterers interferometric synthetic aperture radar(PS-InSAR)technique to detect and measure ground movement in the area around the Metro Line No.15.The processing includes the selection of PS points,the generation of differential interferograms,phase regression analysis and calculation of refined baselines.It uses the kriging interpolation method in ArcGIS to get continuous subsidence rate.Based on the subsidence and cross-sectional image of subsidence rate along the subway,the influence from regional uneven subsidence on curvature radius is analyzed,and appropriate measures to prevent land subsidence and guarantee the safety of subway running are proposed.