基于PS-InSAR技术的连盐高铁灌河特大桥形变监测与分析

U24%U446%P237; 桥梁形变监测对发现桥梁安全隐患,避免桥梁安全事故发生具有重要意义.与传统桥梁监测方法相比,永久散射体合成孔径雷达干涉测量(Permanent Scatter Synthetic Aperture Radar Interferometry,PS-InSAR)技术以其监测成本低、监测范围广、监测精度高和非接触等优势,在大范围桥梁形变监测中具有潜在优势.以连盐高铁灌河特大桥为研究对象,利用时间跨度为2018年1月至2020年12月的89景C波段中分辨率Sentinel-1A数据,使用PS-InSAR技术提取灌河特大桥的形变信息,并将监测结果与同期北斗(BeiDou Na...

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Published in铁道标准设计 Vol. 67; no. 11; pp. 100 - 133
Main Authors 吴星乐, 罗海滨
Format Journal Article
LanguageChinese
Published 南京信息工程大学遥感与测绘工程学院,南京 210044 01.11.2023
Subjects
PS-InSAR
Lianyungang-Yancheng High-speed Railway
BeiDou navigation satellite system
Guanhe Bridge
形变监测
灌河特大桥
北斗导航系统
连盐高铁
deformation monitoring
Online AccessGet full text
ISSN1004-2954
DOI10.13238/j.issn.1004-2954.202204170006

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Abstract U24%U446%P237; 桥梁形变监测对发现桥梁安全隐患,避免桥梁安全事故发生具有重要意义.与传统桥梁监测方法相比,永久散射体合成孔径雷达干涉测量(Permanent Scatter Synthetic Aperture Radar Interferometry,PS-InSAR)技术以其监测成本低、监测范围广、监测精度高和非接触等优势,在大范围桥梁形变监测中具有潜在优势.以连盐高铁灌河特大桥为研究对象,利用时间跨度为2018年1月至2020年12月的89景C波段中分辨率Sentinel-1A数据,使用PS-InSAR技术提取灌河特大桥的形变信息,并将监测结果与同期北斗(BeiDou Navigation Satellite System,BDS)观测数据进行比较.结果表明:在监测时间段内,灌河特大桥形变速率范围为1.7～5.3mm/a,时序形变平均值趋近0,桥梁整体保持稳定;PS-InSAR和BDS对比结果的均方根误差在6mm之内,二者取得了较好的一致性.研究结果证实了C波段中分辨率Sentinel-1A数据监测大跨度刚桁梁柔性拱桥的可行性,可为桥梁的风险管理和灾害预警提供参考依据.
AbstractList U24%U446%P237; 桥梁形变监测对发现桥梁安全隐患,避免桥梁安全事故发生具有重要意义.与传统桥梁监测方法相比,永久散射体合成孔径雷达干涉测量(Permanent Scatter Synthetic Aperture Radar Interferometry,PS-InSAR)技术以其监测成本低、监测范围广、监测精度高和非接触等优势,在大范围桥梁形变监测中具有潜在优势.以连盐高铁灌河特大桥为研究对象,利用时间跨度为2018年1月至2020年12月的89景C波段中分辨率Sentinel-1A数据,使用PS-InSAR技术提取灌河特大桥的形变信息,并将监测结果与同期北斗(BeiDou Navigation Satellite System,BDS)观测数据进行比较.结果表明:在监测时间段内,灌河特大桥形变速率范围为1.7～5.3mm/a,时序形变平均值趋近0,桥梁整体保持稳定;PS-InSAR和BDS对比结果的均方根误差在6mm之内,二者取得了较好的一致性.研究结果证实了C波段中分辨率Sentinel-1A数据监测大跨度刚桁梁柔性拱桥的可行性,可为桥梁的风险管理和灾害预警提供参考依据.
Author 吴星乐
罗海滨
AuthorAffiliation 南京信息工程大学遥感与测绘工程学院,南京 210044
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DocumentTitle_FL Deformation Monitoring and Analysis of Guanhe Bridge on Lian-Yan High-speed Railway Based on PS-InSAR Technology
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Keywords PS-InSAR
Lianyungang-Yancheng High-speed Railway
BeiDou navigation satellite system
Guanhe Bridge
形变监测
灌河特大桥
北斗导航系统
连盐高铁
deformation monitoring
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Title 基于PS-InSAR技术的连盐高铁灌河特大桥形变监测与分析
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