Deformation Monitoring of Large Structures by Ground-Based Sar Interferometry

Qiu, Zhiwei; Yue, Jianping; Wang, Xueqin; Yue, Shun

doi:10.1590/s1982-21702016000100003

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…In addition, some of the measurements can be related to some loose parts, e.g., wiring, railing or lamps. Examples of data interpretation of GBSAR measurements of a complex dam structure are described by Qiu [ 106 ] and Huang [ 107 ].…”

Section: Remote Sensors For Areal Deformation Measurement (Adm)mentioning

confidence: 99%

Geodetic and Remote-Sensing Sensors for Dam Deformation Monitoring

Scaioni

Marsella

Crosetto

et al. 2018

Sensors

119

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In recent years, the measurement of dam displacements has benefited from a great improvement of existing technology, which has allowed a higher degree of automation. This has led to data collection with an improved temporal and spatial resolution. Robotic total stations and GNSS (Global Navigation Satellite System) techniques, often in an integrated manner, may provide efficient solutions for measuring 3D displacements on precise locations on the outer surfaces of dams. On the other hand, remote-sensing techniques, such as terrestrial laser scanning, ground-based SAR (synthetic aperture radar) and satellite differential interferometric SAR offer the chance to extend the observed region to a large portion of a structure and its surrounding areas, integrating the information that is usually provided in a limited number of in-situ control points. The design and implementation of integrated monitoring systems have been revealed as a strategic solution to analyze different situations in a spatial and temporal context. Research devoted to the optimization of data processing tools has evolved with the aim of improving the accuracy and reliability of the measured deformations. The analysis of the observed data for the interpretation and prediction of dam deformations under external loads has been largely investigated on the basis of purely statistical or deterministic methods. The latter may integrate observation from geodetic, remote-sensing and geotechnical/structural sensors with mechanical models of the dam structure. In this paper, a review of the available technologies for dam deformation monitoring is provided, including those sensors that are already applied in routinary operations and some experimental solutions. The aim was to support people who are working in this field to have a complete view of existing solutions, as well as to understand future directions and trends.

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Section: Remote Sensors For Areal Deformation Measurement (Adm)mentioning

confidence: 99%

Geodetic and Remote-Sensing Sensors for Dam Deformation Monitoring

Scaioni

Marsella

Crosetto

et al. 2018

Sensors

119

View full text Add to dashboard Cite

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“…SAR interferometry concept has been introduced in the last 1980 (Gabriel, Goldstein, and Zebker 1989). Interferometry SAR (InSAR) (Aydoner, Maktav, and Alparslan 2004) techniques are widely used to measure the topographic profile (Bürgman, Rosen, and Fielding 2000) and surface deformations (Ishwar and Kumar 2017) (Fulton 2000) (Burgmann, Rosen, and Fielding 2000;Bürgmann, Rosen, and Fielding 2000;Iglesias et al 2015; Klees and Massonnet 1999;Otir and Komac 2007;Peltier et al 2010;Qiu et al 2016;Samieie-Esfahany et al 2009) and subsidence monitoring (Strozzi et al 2001). Differential SAR-Interferometry (D-InSAR) is one of the competent technique use to identify the land surface horizontal motion and land subsidence (Ishwar andKumar 2017)(Strozzi et al 2001) (Bhattarai et al 2017;Caló et al 2017;Champati, Head, and Studies 2001;Chang, Ge, and Rizos 2005) over a large area at low cost than the traditional techniques (Ng et al 2011) (Ferretti, Prati, and Rocca 2001).The precise leveling, total station and global navigation satellite system (GNSS) are common ground-based traditional measurement techniques which are used to monitor the subsidence at a pin * Corresponding author point location in an area.…”

Section: Introductionmentioning

confidence: 99%

Deformation Monitoring in and Around the National Capital Region of India Using Dinsar Technique

Monika¹,

Govil²,

Meisina³

et al. 2018

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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<p><strong>Abstract.</strong> Urbanization increases the pressure on land and ground water. Due to pressure on land and over extraction of the ground water for modernization and development, deformation of land increase. The traditional deformation monitoring techniques are costly and time taking. The Differential Interferometry Technique (DInSAR) has capability to monitor regional scale deformation. Recently Vasundra region of the NCR has experienced a road subsidence near to the multiple stories building. In the study we have attempted to identify the Vasundra and nearby region by the DInSAR technology to identify the deformation in Delhi and NCR focused on the Vasundra area of Ghaziabad, Uttar Pradesh, India. This is one of the developed and planned area in the Ghaziabad District. The Sentinel-1 C data has been used to monitor the deformation in that area. The Vasundra area has been deformed due to heavy rainfall and water logging in the surrounding area by which the road has been subsided up to 30 feet. Using the sentinel data we were able to identify the subsidence in Vasundra and nearby areas. Since the Sentinel scene was very big so a clear picture of the deformation indication in the NCR region are found which need more in-depth study further. Conclusively it can be said that DInSAR technique with Microwave data is a competent tool to monitor the minute deformation.</p>

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