Počet záznamů: 1
Stress State Monitoring in the Surroundings of the Roadway Ahead of Longwall Mining
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SYSNO ASEP 0475744 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Stress State Monitoring in the Surroundings of the Roadway Ahead of Longwall Mining Tvůrce(i) Waclawik, Petr (UGN-S) RID
Kukutsch, Radovan (UGN-S) RID, ORCID
Koníček, Petr (UGN-S) RID, ORCID
Ptáček, Jiří (UGN-S) RID
Kajzar, Vlastimil (UGN-S) RID, ORCID
Němčík, J. (AU)
Staš, Lubomír (UGN-S) RID, ORCID
Souček, Kamil (UGN-S) RID, ORCID
Vavro, Martin (UGN-S) RID, ORCIDCelkový počet autorů 9 Zdroj.dok. Procedia Engineering - ISRM European Rock Mechanics Symposium EUROCK 2017. - Amsterdam : Elsevier Ltd., 2017 / Koníček P. ; Souček K. ; Konečný P. - ISSN 1877-7058 Rozsah stran s. 560-567 Poč.str. 8 s. Forma vydání Online - E Akce ISRM European Rock Mechanics Symposium EUROCK 2017 Datum konání 20.06.2017 - 23.06.2017 Místo konání Ostrava Země CZ - Česká republika Typ akce WRD Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova stress-state ; monitoring ; coal mining ; longwall 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 UT WOS 000416996000072 DOI 10.1016/j.proeng.2017.05.218 Anotace Accurate knowledge of the stress-strain state of rock mass, not only in their vicinity but also in the wide surroundings of mine workings, is absolutely critical for precise support designing. Investigation of the rock stress is usually carried out by interpretation of the rock mass deformation processes, which can be relatively precisely observed and measured.
In order to verify the stress state of the rock mass and changes in it induced by longwall mining, monitoring of changes in the rock mass stress in connection with the mine out of the longwall No. 371 202 was carried out. The seam extracted by monitored longwall has a thickness of approximately 2 m at a depth about 1100 m and lies within the Czech part of the Upper Silesian Coal Basin. Interpretation of the initial rock mass stress tensor and verification of its changes during longwall mining were the aims of this stress monitoring. A total of five probes were installed on the roof rocks of the main gate. Two compact conical-ended borehole overcoring probes were installed to obtain the pre-mining full stress tensor and afterwards three compact conical-ended borehole monitoring probes were installed to continuously monitor the stress state in the rock mass ahead of the advancing longwall. The monitored stress development contributes to our knowledge of stress distribution and its changes during excavation at great depth in multi-seam sedimentary deposits of the Upper Silesian Coal Basin.Pracoviště Ústav geoniky Kontakt Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Rok sběru 2018 Elektronická adresa http://www.sciencedirect.com/science/article/pii/S1877705817323585
Počet záznamů: 1