InSAR技术在天津地铁六号线盾构区间沉降监测中的应用研究

The Research on Applied In SAR Technology in the Tianjin Metro Shield Tunnels Subsidence Monitoring

以天津市地铁六号线为例,采用高分辨率SAR数据集和时序In SAR数据处理方法获取了地铁六号线沿线高精细度的地表沉降监测成果,并利用纵、横断面分析方法从空间上分析了地铁沿线地面沉降的分布和变化特征。最后,结合工程开挖模拟结论和现场验证成果,验证了In SAR技术在城市轨道交通领域施工沉降监测中应用的可行性,为后续的城市轨道交通施工大范围、长时间监测提供参考。

This paper focused on the In SAR technology applications and data processing method,Extract the ground subsidence monitoring results along Tianjin metro line six use In SAR technology,by comparing the ground subsidence InSAR monitoring results with the simulation analysis of engineering excavation,it can be seen that both had a high degree of consistency in subsidence trend and settlement. Except that,site validation method can also indicate the feasibility of application In SAR technique in the subsidence monitoring of urban rail transit,for the future deformation monitoring of urban rail transit project during construction and operation period,to provide high-resolution surface deformation information.