Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Petr Waclawik"'
Autor:
Sahendra Ram, Petr Waclawik, Jan Nemcik, Radovan Kukutsch, Ashok Kumar, Arun Kumar Singh, Libin Gong
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 5, Pp 1111-1126 (2023)
A variety of coal room and pillar mining methods have been efficiently practiced at depths of up to 500 m with least strata mechanics issues. However, for the first time, this method was trialled at depths of 850–900 m in CSM mine of Czech Republic
Externí odkaz:
https://doaj.org/article/fb58d7bb55174818a1547a39f2766640
Publikováno v:
Journal of Sustainable Mining, Vol 15, Iss 2, Pp 49-56 (2016)
Current mining activities of the OKD mines are primarily focused on coal seams within the Karvina Formation in the Karvina sub-basin. A considerable amount of coal reserves are situated in protection pillars that lie under built-up areas. The longwal
Externí odkaz:
https://doaj.org/article/6819c25f41bc47c299b2fd2524790082
Publikováno v:
Journal of Sustainable Mining, Vol 14, Iss 1, Pp 30-37 (2015)
The application of laser scanning technology has increased recently in many different branches. The presented paper deals with an application of this technology in the mining environment. To verify the spatial changes (movements and deformations) of
Externí odkaz:
https://doaj.org/article/99688c3cc9df49c0afa9f07ba50397f4
Autor:
Petr Waclawik, Radomír Grygar
Publikováno v:
Acta Montanistica Slovaca, Vol 16, Iss 2, Pp 159-175 (2011)
The contribution deals with the structural-tectonic conditions of the Karviná Subbasin especially in relation to the genesis, spatialdistribution and prediction of the continuation of thrust structures on lower structural and stratigraphical levels.
Externí odkaz:
https://doaj.org/article/a3f48322c20a4f96878e378adf2014f5
Publikováno v:
In Procedia Engineering 2016 149:544-552
Publikováno v:
SSRN Electronic Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60197e0b0ddc1f7fb884ab197b7b0930
https://doi.org/10.2139/ssrn.4080584
https://doi.org/10.2139/ssrn.4080584
Autor:
Mudassar Raja, Niraj Kumar, Petr Waclawik, Ashok Kumar, Rakesh Kumar, Sahendra Ram, Arun Kumar Singh, Abhishek Gautam
Publikováno v:
Arabian Journal of Geosciences. 14
Rock bolts have replaced the conventional cog/chock as roof support from underground coal mines working with continuous miner (CM) technology in Bord and Pillar mining method with caving system. Rock bolts installed in the gallery at the goaf edge by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32ee3505eb3be8190f80137013f78fd5
https://doi.org/10.1007/s12517-021-08379-3
https://doi.org/10.1007/s12517-021-08379-3
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 113:322-332
Exhaustion of coal reserve, extractable by conventional longwall method of working at Czech mines, provided an opportunity to try modified Room and Pillar (R&P) method to extract high grade coal locked-up in larger shaft protection pillar at around 9
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b67308cc58d161a1a58c61771837c40b
https://doi.org/10.1016/j.ijrmms.2018.10.006
https://doi.org/10.1016/j.ijrmms.2018.10.006
Autor:
Petr Waclawik, Petr Konicek
Publikováno v:
Tunnelling and Underground Space Technology. 81:237-251
Rockburst represents a very dangerous phenomenon in deep underground mining as well as in underground constructions in unfavourable conditions (great depth, high horizontal stress, proximity of important tectonic structures, etc.). The rockburst prob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c6551fabc4cca1f0556e52ebd7ce3d0
https://doi.org/10.1016/j.tust.2018.07.019
https://doi.org/10.1016/j.tust.2018.07.019
Publikováno v:
Rock Mechanics and Rock Engineering. 52:1447-1458
In the Czech part of the Upper Silesian Coal Basin, there are records of rockbursts dating back as early as the beginning of the last century. Since then, 450 such rockbursts of varying intensities have been recorded. This article is a vignette of ou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3f08e2f720014721d11163691d2855c
https://doi.org/10.1007/s00603-018-1489-y
https://doi.org/10.1007/s00603-018-1489-y