基于时序InSAR技术的大型基坑开挖周边地表沉降特征分析

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关键词：基坑监测;SBAS-InSAR;地表沉降；水准数据；可靠性

中图分类号：P237 文献标志码：A 文章编号：1003-5168（2025）21-0073-06

DOI：10.19968/j.cnki.hnkj.1003-5168.2025.21.014

Abstract： [Purposes] To investigate the impact of large-scale foundation pit excavation on the surrounding environment.[Methods] SBAS-InSAR technology was used to process19 scenes of Sentinel-1A satelite data to obtain surface deformation information for a metro parking lot foundation pit in Fujian Province from June 2O24 to January 2O25.The results were compared with leveling data to verify the reliability of the SBASInSAR monitoring results.[Findings] The results indicate that the maximum annual settlement rate at the pit boundary was 24.09mm/a ， with a cumulative maximum settlement of 8.7 mm，both located in the northern part of the pit. The results from combining construction logs and historical remote sensing images are consistent withthe issues identified by the SBAS-InSAR monitoring data.[Conclusions] This demonstrates the feasibility of using this technology for monitoring foundation pit deformation.

Keywords： foundation pit monitoring; SBAS-InSAR; surface settlement; leveling data; reliability

0 引言

基坑作为城市地下空间开发与高层建筑建设中的关键临时工程，其稳定性直接关系到周边建筑物、地下管线及交通设施的安全性。（剩余5531字）