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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Convergence measurement of CSM Sever vent shaft and mining work No. 292291 on 3rd floor in connection with the mining of the face No. 292 200/2 using 3D terrestrial laser scanner technology
 Kajzar, Vlastimil ; Koníček, Petr
On the basis of a contract, the Institute of Geonics of the CAS realized repeated convergence measurement of selected part of the mining works in order to capture spatio-temporal and dynamic changes in connection with the mining of longwall face No. 292 200/2. The subject of the use of terrestrial laser scanning technology was to capture the current spatial situation of of the approximately 200 m long section of corridor No. 29229. Furthermore, the spatial state of vent pit on the 3rd floor of the CSM Sever mine and its adjacent surroundings was also a subject of interest. The project here continuously follows on from the previous long-term monitoring carried out as part of contractual research with OKD, a. s. in 2020-2021 - Convergence measurement of CSM Sever vent shaft and adjacent surroundings on 3rd floor using 3D terrestrial laser scanner technology.\n
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Convergence measurement of CSM Sever vent shaft and adjacent surroundings on 3rd floor using 3D terrestrial laser scaner technology
 Kajzar, Vlastimil ; Koníček, Petr
On the basis of a contract, the Institute of Geonics of the CAS realized repeated convergence measurement of selected part of the mining roads and appropriate part of vent shaft on the 3rd floor in the vicinity of the CSM Sever vent shaft. The main reason was to capture spatio-temporal and dynamic changes in relation to the mining of the coalface No. 292 200/4. A section of the embankment of the 3rd floor of the vent shaft was selected for the convergence measurement.\nThe subject of the use of terrestrial laser scanning technology was to capture the current spatial situation of the vent pit on the 3rd floor of the CSM Sever mine and its adjacent surroundings. The wider area around the shaft and the part of the vent shaft directly visible from the level of the galleries of the 3rd floor were scanned. The scanning was performed using a Leica ScanStation C10 laser scanner. The rescanning was performed using a FARO Focus S350 laser scanner.
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Convergence measurement of the vent shaft on the 3rd floor during the mining of coalface No. 292 200/4
 Koníček, Petr ; Kajzar, Vlastimil ; Kukutsch, Radovan ; Staš, Lubomír
On the basis of a contract, the Institute of Geonics of the CAS realized repeated convergence measurement of selected part of the mining roads and appropriate part of vent shaft on the 3rd floor in the vicinity of the ČSM Sever vent shaft. The main reason was to capture spatio-temporal and dynamic changes in relation to the mining of the coalface No. 200 200/4. A section of the embankment of the 3rd floor of the vent shaft was selected for the convergence measurement. The work can be divided into 3 separate tasks - terrestrial laser scanning of the vent shaft from level of the 3rd floor, pilot laser scanning of the vent shaft from the skip elevator and evaluation of seismological activity registered during the mining of the coalface No. 292 200/4.
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