Počet záznamů: 1
Stress-deformation monitoring of coal pillars during room and pillar extraction at the great depth
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SYSNO ASEP 0479433 Druh ASEP A - Abstrakt Zařazení RIV Záznam nebyl označen do RIV Zařazení RIV Není vybrán druh dokumentu Název Stress-deformation monitoring of coal pillars during room and pillar extraction at the great depth Tvůrce(i) Waclawik, Petr (UGN-S) RID
Kukutsch, Radovan (UGN-S) RID, ORCID
Kajzar, Vlastimil (UGN-S) RID, ORCID
Staš, Lubomír (UGN-S) RID, ORCID
Němčík, J. (AU)
Nohejl, Zdeněk (UGN-S)Celkový počet autorů 6 Zdroj.dok. Górnicze Zagrożenia Naturalne 2017. - Katowice : Główny Instytut Górnictwa - Zakład Tąpań i Mechaniki Górotworu, 2017 - ISBN -
S. 37-37Poč.str. 1 s. Forma vydání Tištěná - P Akce GÓRNICZE ZAGROŻENIA NATURALNE 2017 - MIĘDZYNARODOWĄ KONFERENCJĘ NAUKOWO-TECHNICZNĄ /24./ Datum konání 04.10.2017 - 07.10.2017 Místo konání Katowice Země PL - Polsko Typ akce EUR Jazyk dok. eng - angličtina Země vyd. PL - Polsko Klíč. slova stress-deformation ; monitoring ; room and pillar ; coal pillar Vědní obor RIV DH - Báňský průmysl vč. těžby a zpracování uhlí Obor OECD Mining and mineral processing CEP LO1406 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy ED2.1.00/03.0082 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UGN-S - RVO:68145535 Anotace A considerable amount of coal reserves are located in protection pillars that lie under built-up region in active mining areas at the Czech part of the Upper Silesian Coal Basin. The commonly used controlled caving longwall mining method is not applicable in these areas because significant deformation of the surface is not permitted. For this reason the room and pillar method with stable coal pillars has been tested in order to minimise strata convergence. The trial operation of room and pillar method has been implemented at the shaft protective pillar of CSM Mine where no mining carried out in the past. Mining depth of room and pillar trial ranged from 700 to 900 meters, being perhaps the deepest room and pillar coal mining in the World.Stress-deformation monitoring was essential as this was the first application of the conventional room and pillar mining method within the Upper Silesian Coal Basin mines. More than six kilometres of roadways were driven within two panels during last three years. Second panel was finished in August this year. An extensive monitoring system was implemented to measure the load profile across the coal pillar and the deformation characteristics in the pillar during mining. Two monitored pillars diamond in shape and slightly irregular sides were approximately 860 m2 and 1200 m2 in size into the first mined panel “V” and three monitored pillars were approximately 590 m2, 590 m2 and 730 m2 in size into the second panel “II”. The monitored pillars were selected so that recorded the behaviour of rock masses in different geotechnical conditions. In the context of stress and deformation, the monitoring are covering deformability of rock overlaying the room and pillar roadways, measuring pre-mining stress and stress change monitoring in rock and coal during mining, deformability of coal pillars, load on the installed cable bolts, roadway convergence monitoring. On top of all that the seismology and seismo-acoustic monitoring were carried out. Pracoviště Ústav geoniky Kontakt Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Rok sběru 2018
Počet záznamů: 1