中文摘要：

地面沉降对城市建筑物构成巨大威胁,对城市建筑物进行沉降监测具有重要意义.采用德国合成孔径雷达（TerraSAR-X）1,m空间分辨率的雷达影像,使用永久散射体干涉测量（PSI）技术,以天津塘沽渤海石油新村和东沽石油新村为研究区,研究不同类型建筑物（建造时间、层高及地理位置等）的沉降特征.研究结果表明,不同类型建筑物在沉降率和沉降时间过程上具有较强的时空分异性.研究结果可以为天津塘沽滨海新区建筑物沉降风险控制提供科学参考.

英文摘要：

Because land subsidence severely threatens urban buildings,subsidence monitoring of urban buildings is very significant.Using Germanic synthetic aperture radar（TerraSAR-X）images with 1-m spatial resolution and per-manent scatterers interferometric（PSI） technique,a subsidence monitoring experiment was conducted to study the subsidence characteristics of different types of buildings（time,height,location）in Tanggu Bohai district and Donggu district.The study shows that the temporal and spatial characteristics of building subsidence vary significantly with different types of buildings in terms of subsidence rate and subsidence time process.The study results can provide scientific reference for the risk control of buildings subsidence in Tianjin Tanggu Binhai New Area.