Using Ground Radar Interferometry for Precise Determining of Deformation and Vertical Deflection of Structures

0487917 - ÚTIA 2018 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Talich, Milan
Using Ground Radar Interferometry for Precise Determining of Deformation and Vertical Deflection of Structures.
IOP Conference Series: Earth and Environmental Science. Volume 95, 2017. Bristol BS1 6HG: IOP Publishing Ltd., 2017 - (Ferrero, A.M.; Drusa, M.; Marschalko, M.; Yilmaz, I.; Karaca, O.; Torok, I.), s. 1-10, č. článku 032021. ISBN N. ISSN 1755-1307. E-ISSN 1755-1315.
[World Multidisciplinary Earth Sciences Symposium (WMESS 2017). Prague (CZ), 11.09.2017-15.09.2017]
Grant CEP: GA MPO FR-TI4/436
Institucionální podpora: RVO:67985556
Klíčová slova: ground-based radar interferometry * disaster prevention * dynamic loads * horizontal vibration * radar measurement * vertical deflections of bridge * horizontal movements of water tower reservoir * horizontal movements of factory chimneys * horizontal movements of wind power plant pylons * deformations
Obor OECD: Remote sensing
http://library.utia.cas.cz/separaty/2017/ZOI/talich-0487917.pdf

The paper describes possibilities of the relatively new technics – ground based radar interferometry for precise determining of deformation of structures. Special focus on the vertical deflection of bridge structures and on the horizontal movements of high-rise buildings and structural objects is presented. The technology of ground based radar interferometry can be used in practice to the contactless determination of deformations of structures with accuracy up to 0.01 mm in real time. It is also possible in real time to capture oscillations of the object with a frequency up to 50 Hz. Deformations can be determined simultaneously in multiple places of the object, for example a bridge structure at points distributed on the bridge deck at intervals of one or more meters. This allows to obtain both overall and detailed information about the properties of the structure during the dynamic load and monitoring the impact of movements either individual vehicles or groups. In the case of high-rise buildings, it is possible to monitor the horizontal vibration of the whole object at its different height levels. It is possible to detect and determine the compound oscillations that occur in some types of buildings. Then prevent any damage or even disasters in these objects. In addition to the necessary theory basic principles of using radar interferometry for determining of deformation of structures are given. Practical examples of determining deformation of bridge structures, water towers reservoirs, factory chimneys and wind power plants are also given. The IBIS-S interferometric radar of the Italian IDS manufacturer was used for the measurements.
Trvalý link: http://hdl.handle.net/11104/0282557