| 城市建筑物沉降永久散射体干涉雷达监测 |
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| 引用本文： | 兰恒星,刘洪江,孙铁,贾有良,杨志华,丁尚起,黄晓明.城市建筑物沉降永久散射体干涉雷达监测[J].天津大学学报(自然科学与工程技术版),2012(4):292-300. |
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| 作者姓名： | 兰恒星 刘洪江 孙铁 贾有良 杨志华 丁尚起 黄晓明 |
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| 作者单位： | 中国科学院地理科学与资源研究所资源环境信息系统国家重点实验室;天津市天勘滨海工程技术有限公司;天津市测绘院;天津市滨海新区水务局 |
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| 基金项目： | 国家自然科学基金资助项目(41072241);国家科技支撑资助项目(2008BAK50B05) |
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| 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.
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| 关 键 词： | 建筑物沉降 永久散射体干涉测量（PSI） TerraSAR-X |
Subsidence Monitoring of Urban Buildings Using PSI |
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| LAN Heng-xing,LIU Hong-jiang,SUN Tie,JIA You-liang,YANG Zhi-hua,DING Shang-qi,HUANG Xiao-ming.Subsidence Monitoring of Urban Buildings Using PSI[J].Journal of Tianjin University(Science and Technology),2012(4):292-300. |
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| Authors: | LAN Heng-xing LIU Hong-jiang SUN Tie JIA You-liang YANG Zhi-hua DING Shang-qi HUANG Xiao-ming |
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| Affiliation: | 1.State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China;2.Tianjin Tiankan Binhai Engineering Technology Company Limited,Tianjin 300381,China;3.Tianjin Institute of Surveying and Mapping,Tianjin 300381,China;4.Bureau of Water Resources in Tianjin Binhai New Area,Tianjin 300450,China) |
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| Abstract: | 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. |
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| Keywords: | buildings subsidence permanent scatterers interferometric（PSI） TerraSAR-X |
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