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22 results on '"Jirankova, Eva"'

4. Subsidence

Author

Lazecky, Milan, Jirankova, Eva, Kadlecik, Pavel, Bobrowsky, Peter T., editor, and Marker, Brian, editor

Published
2018
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9. Subsidence

Author

Lazecky, Milan, primary, Jirankova, Eva, additional, and Kadlecik, Pavel, additional

Published
2016
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10. PostMinQuake: Seismicity of selected closed European hard coal mines during flooding.

Author

Doncel, Paloma Primo, Kotyrba, Andrzej, Cesca, Simone, Sokola-Szewiola, Violetta, Konicek, Petr, Kajzar, Vlastimil, Schreiber, Jan, Contrucci, Isabelle, Jirankova, Eva, and Dominique, Pascal

Subjects
ANTHRACITE coal, COAL mining, MINE closures, WATER table, WATER levels, MINE water
Abstract

Copyright of Journal of Applied & Regional Geology / Zeitschrift der Deutschen Gesellschaft für Geowissenschaften (ZDGG) is the property of E. Schweizerbart'sche Verlagsbuchhandlung and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022
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15. EVALUATION OF SURFACE SURVEYINGS REALIZED IN REGION UNDER THE INFLUENCE OF MINING METHOD ROOM AND PILLAR.

Author

Jirankova, Eva and Muckova, Jitka

Subjects
*MINERAL industries, *COAL mining, *LONGWALL mining, *SHAFTS (Excavations), *EARTHWORK
Abstract

In the protective pillar of the shaft in the mining area North Plant 2 the mining method Room and Pillar was practised on for trial from May 2014 to October 2017, which was suggested as inovation of the mining method Room and Pillar. The task of trial operation was to prove the utilization of the mining method under conditions of underground coal mines in the Ostrava-Karviná coalfield. The principle of the mining method is leaving stable coal pillars to support the overlying layers and then extensive separation in the overlying strata would not arise and mining influence on the surface would be minimal. The introduction and realization of the new mining method is connected with research of the effects on the surface which is necessary for the consideration of extent of mining effects. The protective pillar of the shaft in the mining area North Plant 2 has not constructed as full protected. In the surroundings of the protective pillar longwall mining method with caving is used. The limited protected area on the surface is influenced due to this extraction. The question is solved how to prove the influence of mining method Room and Pillar during the influence of parallel existence of longwall mining method with caving in the surroundings of protective pillar of the shaft. In order to many measurements both on the sutface and in the underground space were projected and realized. The article deals with the methods of measurement and the accuracy of the resultes of the surface measurement which are realized for the use of assessment of influnce of mining method Room and Pillar on the surface. [ABSTRACT FROM AUTHOR]

Published
2018
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19. Longtime monitoring of mine subsidence in Northern Moravia, Czech republic using different insar techniques

Author

Jirankova Eva and Lazecky Milan

Subjects
Synthetic aperture radar, Interferometry, Levelling, law, Interferometric synthetic aperture radar, Mode (statistics), Subsidence (atmosphere), Radar, Geodesy, Geology, Remote sensing, Vegetation cover, law.invention
Abstract

In the undermined Northern Moravia region, the land is subsiding even more than a metre per year causing damages to many human-made objects. Such a fast subsidence is almost not possible to estimate using multitemporal radar interferometry techniques that were applied to ERS-2 data of 1996–2001. Classic differential radar interferometry approaches were successfully applied allowing to visually interprete the evolution of subsidence in the area using Envisat and ERS-1/2 images from years 1996–2009. Results of the radar interferometry usage have been compared with the levelling data. Because of several factors, most of the interferograms are decorrelated. These factors are depicted and several solution scenarios are pointed out. To overcome such limitations as a relatively strong vegetation cover in the area and to detect such a fast subsidence in small areas, the ALOS PALSAR images in fine resolution mode has been successfully used.

Published
2010

22. SURVEY AND EVALUATION OF VERTICAL SHIFTS IN DAM BLOCKS IN THE KRUZBERK WATER STRUCTURE.

Author

Molcak, Vlastimil, Jirankova, Eva, Dandos, Rostislav, Jadviscok, Petr, Havlicova, Martina, and Gibesova, Beata

Subjects
*SURVEYING (Engineering), *INDUSTRIAL safety, *DAMS, *EARTHWORK, *DIVERSION structures (Hydraulic engineering)
Abstract

The publication is focused on surveying and evaluating vertical shifts in dam blocks of the Kružberk water structure. To a certain extent, the publication addresses the process of surveying works and of becoming acquainted with the levelling ground materials used, including stabilization of the levelling marks used inside and outside the dam. Subsequently, altitudes of points are calculated, they are compared to previous stage measurements and original surveys in 1955 performed under technical and safety supervision. The paper also includes time and spatial evaluation of the shifts. [ABSTRACT FROM AUTHOR]

Published
2013

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