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Mechanism of rigid overlaying of carboniferous strata failure in face mining in the case of multiseams deposit
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SYSNO ASEP 0394583 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Mechanism of rigid overlaying of carboniferous strata failure in face mining in the case of multiseams deposit Author(s) Jiránková, E. (CZ)
Staš, Lubomír (UGN-S) RID, ORCID
Kajzar, Vlastimil (UGN-S) RID, ORCID
Doležalová, Hana (UGN-S) RIDNumber of authors 4 Source Title Acta geodynamica et geomaterialia. - : Ústav struktury a mechaniky hornin AV ČR, v. v. i. - ISSN 1214-9705
Roč. 10, č. 2 (2013), s. 189-195Number of pages 7 s. Publication form Online - E Language eng - English Country CZ - Czech Republic Keywords subsidence trough ; rock mass ; overlaying strata ; longwall mining ; tensor stress measurement Subject RIV DH - Mining, incl. Coal Mining R&D Projects ED2.1.00/03.0082 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) VG20102014034 GA MV - Ministry of Interior (MV) Institutional support UGN-S - RVO:68145535 UT WOS 000321576700008 DOI 10.13168/AGG.2013.0019 Annotation The technique of assessing the failure of ri gid overlying strata is applicable to deep mining with thick coal seams (a thicknes s of more than 1 m in the Ostrava–Karvina Coalfield), and in one case to longwall mining with controlled caving. The assessment of failure of rigid overlying st rata makes it possible to di stinguish whether the rigid ov erlying strata of rocks ha s been deformed or whether a strutting arch has been formed over the goaf below which is an area that is free from stress. Goo d knowledge of the mining, technical and geological conditions of a given site is a prerequisite for successful evaluation. There are advantages to utilising surface meas urements for interpreting the effects of changes in rock mass, especially in area s of high overlying strata. The prac tical importance of failure asse ssment of overlying strata consists in determining the size o f the mined-out area where the deformation of the rigid overlying strata occurred, which is dependent on the character of the rock mass. Workplace Institute of Geonics Contact Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Year of Publishing 2014 Electronic address http://www.irsm.cas.cz/materialy/acta_content/2013_02/acta_170_08_Jirankova_189-195.pdf
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