NDLI: Ground subsidence monitoring of high speed roads by using PS-InSAR method

Content Provider	IEEE Xplore Digital Library
Author	Jicang Wu Fengming Hu
Copyright Year	2015
Description	Author affiliation: Coll. of Surveying & Geo-Inf., Tongji Univ., Shanghai, China (Jicang Wu; Fengming Hu)
Abstract	With fast economic development, the total length of high speed roads in Shanghai increases dramatically to 815km by the end of 2013. As Shanghai locates at the Yangtze River delta, there is a layer of averagely 300m Quaternary sedimentary at the surface, the basement of the high speed roads are typically of soft soil and geologically weak. Monitoring ground subsidence of the high speed road is very important for the safety and maintaining work. Traditionally, precise leveling is applied for detecting the height changes of road surface. However, it is laborious, expensive, time consuming, and with limited sparse measurement points. InSAR is a new technology for detection of surface changes with high spatial resolution and precision by using satellite images. In this paper, 24 repeated TerraSAR-X images obtained from April 2013 to November 2014 in Shanghai are used to extract ground subsidence along a segment of the high speed road G15 by using the PS-InSAR method. Appropriate multi-look images are applied in the PS-InSAR data processing to enhance the coherence along the high speed roads. A case study was conducted in Shanghai and a maximum of 16mm/year ground subsidence is found at Baojia.
Starting Page	853
Ending Page	858
File Size	468129
Page Count	6
File Format	PDF
e-ISBN	9781467372978
DOI	10.1109/APSAR.2015.7306337
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-01
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	PS-InSAR Roads Atmospheric modeling TerraSAR-X Coherence High speed road Ground subsidence Regression analysis Synthetic aperture radar Monitoring
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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