Interferometric Stacking toward Geohazard Identification and Geotechnical Asset Monitoring

Bouali, El Hachemi; Oommen, Thomas; Escobar-Wolf, R. P.

doi:10.1061/(asce)is.1943-555x.0000281

Cited by 18 publications

(9 citation statements)

References 8 publications

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“…Since then, time series InSAR techniques have been widely applied to monitor various deformations across the geosciences community, including those associated with volcanic eruptions [9], earthquakes [10], landslides [11][12][13], and urban subsidence [14]. In China, given the significance of ground subsidence in the Beijing-Tianjin-Hebei region, time-series InSAR techniques have been employed to monitor ground subsidence in different cities, such as in Beijing [15][16][17], Tianjin [18][19][20], and Langfang [21] and Cangzhou [22] of Hebei province.…”

Section: Introductionmentioning

confidence: 99%

Ground Subsidence in the Beijing-Tianjin-Hebei Region from 1992 to 2014 Revealed by Multiple SAR Stacks

Zhang

Kang

et al. 2016

Remote Sensing

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Abstract:The coordinated development of the Beijing-Tianjin-Hebei has become a national strategy with Beijing and Tianjin as twin engines driving the regional development. However, the Beijing-Tianjin-Hebei region has suffered dramatic ground subsidence during last two to three decades, mainly due to long-term groundwater withdrawal. Although, annual spirit leveling has been conducted routinely in some parts of Beijing and Tianjin, and InSAR technique has also been used to monitor ground subsidence in some local areas of the region, there is a lack of a complete survey of ground subsidence over the whole region. In this paper, we report a research on mapping ground subsidence in the Beijing-Tianjin-Hebei region over a long time span from 1992 to 2014. Three SAR datasets from four satellites are used: ERS-1/2 SAR images from 1992 to 2000, ENVISAT ASAR images from 2003 to 2010, and RADARSAT-2 images from 2012 to 2014. An improved multi-temporal InSAR method, namely "Multiple-master Coherent Target Small-Baseline InSAR" (MCTSB-InSAR), has been developed to process the datasets. A unique feature of MCTSB-InSAR is the adjustment process useful for wide area monitoring which provides an integrated solution for both calibration of InSAR-derived deformation and the harmonization of the deformation estimates from overlapping SAR frames. Three maps of the subsidence rate corresponding to the three periods over the wide Beijing-Tianjin-Hebei region are generated, with respective accuracy of 8.7 mm/year (1992-2000), 4.7 mm/year (2003-2010), and 5.4 mm/year (2012-2014) validated by more than 120 leveling measurements. The spatial-temporal characteristics of the development of ground subsidence in Beijing and Tianjin are analyzed. This research represents a first-ever effort on mapping ground subsidence over very large area and over long time span in China. The result is of significance to serve the decision-making on ground subsidence mitigation in the Beijing-Tianjin-Hebei region.

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Section: Introductionmentioning

confidence: 99%

Ground Subsidence in the Beijing-Tianjin-Hebei Region from 1992 to 2014 Revealed by Multiple SAR Stacks

Zhang

Kang

et al. 2016

Remote Sensing

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“…Advancements in remote sensing technologies for condition assessment present potential for unique applications, including for geotechnical infrastructure [24,25]. Decreased costs and high spatial resolution of remote sensing tools, such as Light Detection and Ranging (LiDAR), laser scanning (terrestrial), and Synthetic Aperture Radar (SAR), have shown promising results for detecting structure changes [17,[26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

A Novel Application of Photogrammetry for Retaining Wall Assessment

2017

Self Cite

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Abstract:Retaining walls are critical geotechnical assets and their performance needs to be monitored in accordance to transportation asset management principles. Current practices for retaining wall monitoring consist mostly of qualitative approaches that provide limited engineering information or the methods include traditional geodetic surveying, which may provide high accuracy and reliability, but is costly and time-consuming. This study focuses on evaluating failure modes of a 2.43 m × 2.43 m retaining wall model using three-dimensional (3D) photogrammetry as a cost-effective quantitative alternative for retaining wall monitoring. As a remote sensing technique, photogrammetry integrates images collected from a camera and creates a 3D model from the measured data points commonly referred to as a point cloud. The results from this photogrammetric approach were compared to ground control points surveyed with a total station. The analysis indicates that the accuracy of the displacement measurements between the traditional total station survey and photogrammetry were within 1-3 cm. The results are encouraging for the adoption of photogrammetry as a cost-effective monitoring tool for the observation of spatial changes and failure modes for retaining wall condition assessment.

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“…Repeat remote sensing acquisitions allow for the ability to calculate and monitor changes in slope geometry and displacement rates. A previous assessment of overall slope displacements across the railroad corridor was performed using Persistent Scatterer Interferometry (PSI) and Distributed Scatterer Interferometry (DSI), InSAR stacking techniques using radar images acquired via satellites, by Bouali et al (2016a). In the case of a rural setting such as this railroad corridor, InSAR is capable of measuring displacement rates for a larger area, such as the general trend of slope movements over extended periods of time (which may aid in potential landslide detection), compared to smaller areas because output data can be spatially limited and detailed measurements may be lacking.…”

Section: Yearly Reviews and Updates (Rhrs Step 6)mentioning

confidence: 99%

“…Interferometric synthetic aperture radar (InSAR) is a remote sensing technique that utilizes the phase component of multiple synthetic aperture radar (SAR) images for obtaining information about how coherent targets change. InSAR enables the user to monitor ground deformation on or near assets, and across km 2 -scale areas over many years (Bouali et al 2016a;Bouali et al 2017a). Based on InSAR results, assets can be organized by hazard (e.g., assets undergoing greatest ground deformation exhibit highest hazard) and engineers can be dispatched for traditional field investigations.…”

Section: Satellite Insar and Sar Datamentioning

confidence: 99%

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Analyzing the Life-Cycle of Unstable Slopes Using Applied Remote Sensing Within an Asset Management Framework

Bouali¹

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Each chapter contains, or is entirely composed of, material that has been published in peer-reviewed academic journals. Below are listed the citations for material found in each chapter. Chapter 1. Portions of this chapter can be found in the literature review sections of the following reports written for a project funded by the US Department of Transportation entitled Sustainable Geotechnical Asset Management along the Transportation Infrastructure Environment using Remote Sensing.

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Interferometric Stacking toward Geohazard Identification and Geotechnical Asset Monitoring

Cited by 18 publications

References 8 publications

Ground Subsidence in the Beijing-Tianjin-Hebei Region from 1992 to 2014 Revealed by Multiple SAR Stacks

Ground Subsidence in the Beijing-Tianjin-Hebei Region from 1992 to 2014 Revealed by Multiple SAR Stacks

A Novel Application of Photogrammetry for Retaining Wall Assessment

Analyzing the Life-Cycle of Unstable Slopes Using Applied Remote Sensing Within an Asset Management Framework

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