[1]黄其欢,丁幼亮,王一安,等.基于InSAR的南京大胜关大桥纵向位移监测与分析[J].东南大学学报(自然科学版),2017,47(3):584-589.[doi:10.3969/j.issn.1001-0505.2017.03.028]
　Huang Qihuan,Ding Youliang,Wang Yian,et al.InSAR-based longitudinal displacement monitoring and analysis on Nanjing Dashengguan bridge[J].Journal of Southeast University (Natural Science Edition),2017,47(3):584-589.[doi:10.3969/j.issn.1001-0505.2017.03.028]
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基于InSAR的南京大胜关大桥纵向位移监测与分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
47
期数:
2017年第3期
页码:
584-589
栏目:
测绘与导航
出版日期:
2017-05-20

文章信息/Info

Title:
InSAR-based longitudinal displacement monitoring and analysis on Nanjing Dashengguan bridge
作者:
黄其欢1; 丁幼亮2; 王一安1; 尹方舟2
1河海大学地球科学与工程学院, 南京 211100; 2东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 210096
Author(s):
Huang Qihuan1;  Ding Youliang2;  Wang Yian1;  Yin Fangzhou2
1School of Earth Sciences and Engineering, Hohai University, Nanjing 211100, China
2Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
SAR;  干涉;  位移;  高速铁路桥梁;  结构健康监测
Keywords:
synthetic aperture radar(SAR);  interferometry;  displacement;  high-speed railway bridge;  structural health monitoring
分类号:
P237
DOI:
10.3969/j.issn.1001-0505.2017.03.028
摘要:
为解决传统桥梁位移监测方法传感器数量有限、监测信息不全面以及监测成本高等问题,以京沪高铁南京大胜关大桥为对象,研究了基于合成孔径雷达干涉(InSAR)的大跨桥梁结构纵向位移监测方法.利用欧空局Sentinel-1A卫星IW模式影像,建立了适用于大跨桥梁纵向位移监测的InSAR时间序列分析方法,得到了全桥1 723个相干目标的纵向位移信息.分析结果表明,大桥纵向位移主要由热膨胀引起,采用InSAR技术可以准确识别全桥纵向位移,且支座处纵向位移与结构温度的相关性模型与该桥支座位移传感器建模结果吻合.
Abstract:
To resolve the problem of the traditional bridge displacement monitoring methods, such as the limited numbers of the monitoring sensors, the incomprehensive monitoring information, the high costs and so on, a monitoring method for the longitudinal displacement of long-span bridges based on the interference of the synthetic aperture radar(InSAR)is proposed by taking the Nanjing Dashengguan bridge as the research subject. The InSAR time series analysis method for longitudinal displacement monitoring of the long-span bridges is established by using the interferometric wide(IW)model image of the Sentinel-1A satellite of the European Space Egency(ESA), and the longitudinal displacement information of 1 723 coherent targets is obtained. The results show that the longitudinal displacement of the bridge is mainly caused by the thermal expansion of the bridge structure. The InSAR technique can accurately identify the longitudinal displacement of the whole bridge. Furthermore, the correlation model between the longitudinal displacement of the bridge and the structural temperature is in agreement with the modeling results of the bridge displacement sensors.

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备注/Memo

备注/Memo:
收稿日期: 2016-09-01.
作者简介: 黄其欢(1978—),男,博士,副教授;丁幼亮(联系人),男,博士,教授,博士生导师,civilding@163.com.
基金项目: 国家重点基础研究计划(973计划)资助项目(2015CB060000)、国家自然科学基金资助项目(41304025, 51578138, 51608258)、江苏省自然科学基金资助项目(BK20130831).
引用本文: 黄其欢,丁幼亮,王一安,等.基于InSAR的南京大胜关大桥纵向位移监测与分析[J].东南大学学报(自然科学版),2017,47(3):584-589. DOI:10.3969/j.issn.1001-0505.2017.03.028.
更新日期/Last Update: 2017-05-20