摘要
合成孔径雷达干涉测量(D-InSAR)技术作为一种新型的空间大地测量技术,具有全天时、全天候、目标范围广的观测能力,能够获取高精度、高分辨率、大范围的地表形变信息,且不需要地面控制点。将这种新技术引入城市轨道交通工程领域,通过采用小基线集测量(SBAS-DInSAR)技术和精密水准测量方法进行北京地铁6号线沿线地面沉降的监测比对实验,探讨D-InSAR技术在城市轨道交通工程变形监测领域的工程化应用。通过比较测量数据,可以看出D-InSAR沉降监测成果和地面精密水准测量在沉降趋势上有着较高的一致性,因此采用该技术进行城市轨道交通工程变形监测具有一定的可行性。
D-InSAR technology is a new type of space geodetic techniques,characterized by its all-day,all-weather,and wide range observation ability to obtain high-precision,high-resolution,and large-scale surface deformation without requiring ground control points.Therefore,D-InSAR technology was introduced into urban rail transit for deformation monitoring.Experiment of using SBASDInSAR technology and precision leveling technology was carried out to monitor the ground subsidence along Beijing metro line 6;the comparison shows that the test data of D-InSAR is in accordance with the data test by precision technology.Specific engineering applications of D-InSAR technology in the deformation monitoring of urban rail transit projects were discussed.It is feasible to apply D-InSAR technology for deformation monitoring in urban rail transit.
出处
《都市快轨交通》
北大核心
2014年第4期62-66,共5页
Urban Rapid Rail Transit
