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Influence of Humidity on the Energy of Specific Strain in the Process of Loading Sedimentary Rocks

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Języki publikacji
EN
Abstrakty
EN
This article presents the results of tests on the energy properties of sedimentary rocks in the Upper Silesian Coal Basin. The rocks were tested both in an air-dry state and in a water saturation state. Samples of sedimentary rocks were collected from boreholes drilled in the underground workings of coal mines located within the area of the city of Jastrzębie, in the areas of the Chwałowice Trough and Rybnik Trough (south-western part of the Upper Silesian Coal Basin) and in the Main Trough. Influence of saturation condition on the values of the tested energy parameters was observed. The values of elastic energy and dissipated energy obtained for the samples tested in water saturation were lower compared to the values obtained for samples tested in air-dry state. As observed, an increase in the values of the given types of specific energy corresponds to an increase in the uniaxial compression strength in air-dry state and in water saturation state. Results of the tests are original and they can be applied while analysing the possibility of the occurrence of some dynamic phenomena and hazards in mine workings in Carboniferous rock mass in the Upper Silesian Coal Basin, caused by mining operations.
Wydawca
Rocznik
Strony
223--230
Opis fizyczny
Bibliogr. 21 poz., tab., rys.
Twórcy
  • Central Mining Institute, Plac Gwarków 1, 40-166 Katowice
autor
  • Central Mining Institute, Plac Gwarków 1, 40-166 Katowice
Bibliografia
  • [1] Bogusz A. and Bukowska M.: Specific energy of hard coal under load. Studia Geotechnica et Mechanica, Vol. 37, No. 1, 9–16, DOI:10.1515/sgem-2015-0002, 2015.
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  • [3] Bukowska M.: Susceptibility of Rock Mass to Rockburst – Geological and Geomechanical Methods of Testing, Central Mining Institute, Katowice, Poland, 2012.
  • [4] Bukowska M.: Influence of height-to-diameter ratio samples and humidity on the geomechanical properties of sandstones. 15th International Multidisciplinary Scientific Geoconference SGEM 2015, Albena, Bułgaria, Vol III – Exploration and Mining, 391–398, 2015a.
  • [5] Bukowska M.: Influence of grain size, humidity and state of stress on the mechanical properties of sandstones. Acta Geodynamica et Geomaterialia Vol. 12, No. 2 (178), 187–195, DOI: 10.13168/AGG.2015.0015, 2015b.
  • [6] Bukowski P., Bukowska M.: Changes in geomechanical properties of carboniferous rocks under influence of saturation condition and their possible consequences in the areas of abandoned mines of Upper Silesian Coal Basin (Poland), Mine Water and Environment Procc. 10th International Mine Water Association Congress, Karlove Vary, Czech. Rep., 123–126, 2008.
  • [7] Bukowski P.: Evaluation of water hazard in Hard Coal Mines in changing conditions of functioning of mining industry in Upper Silesian Coal Basin – USCB (Poland). Archives of Mining Science, Volume: 60, Issue: 2, 455–475, 2015.
  • [8] Bukowski P., Augustyniak I.: Changes in the structure of water inflow into coal mines in Poland. 13th International Multidisciplinary Scientific Geoconference, SGEM 2013, Albena, Bulgaria, Jun 16–22, 2013, Geoconference on Science and Technologies in Geology, Exploration and Mining, Vol II, 25–32, 2013.
  • [9] Bukowski P., Augustyniak I., Niedbalska K.: Some Methods of Hydrogeological Properties Evaluation and Their Use in Mine Flooding Forecasts. 15th International Multidisciplinary Scientific Geoconference, SGEM 2015. Albena, Bulgaria, Jun 18–24, 2015, Science and Technologies in Geology, Exploration and Mining, Vol. II, 717–724, 2015.
  • [10] Heasley K.A.: An examination of energy calculations applied to coal bump prediction. Rock Mechanics as a Multidisciplinary Science, Rotterdam, Balkema, 481–490, 1991.
  • [11] Hudson J.A., Brown E.T., Fairhurst C.: Shape of the complete stress-strain curve of rock. Proc. 13th Symp. Rock. Mech., Illinois, 773–795, 1971.
  • [12] Guidelines for Simplified Classification of Rocks in Documentation of Mineral Deposits for Underground Mining, Katowice, GIG, 1982.
  • [13] Jureczka J., Kotas A.: Upper Silesian Coal Basin, w: The Carboniferous system in Poland. red. A. Zdanowski, H. Żakowa, Państwow. Inst. Geol., nr 148, 1995.
  • [14] Konicek, P., and Schreiber, J. 2018. Rockburst prevention via destress blasting of competent roof rocks in hard coal longwall mining, Journal of the Southern African Institute of Mining and Metallurgy, vol. 118. pp. 235–242, http://dx.doi. org/10.17159/2411-9717/2018/v118n3a6
  • [15] Konicek, P., Schreiber, J. 2018. Heavy rockburst due to longwall mining near protective pillar: A Case Study, International Journal of Mining Science and Technology, Volume 28, Issue 5, pp. 799–805, doi.org/10.1016/j.ijmst.2018.08.010
  • [16] Kotas A.: Uwagi o ewolucji strukturalnej Górnośląskiego Zagłębia Węglowego, On Structural Evolution of the Upper Silesian Coal Basin). Mat. Konf. nt. Tektonika Górnośląskiego Zagłębia Węglowego. Sosnowiec. PIG, 17–41, 1985.
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  • [18] Li D., Yuen Wong L.N., Liu G., Zang X.: Influence of water content and anisotropy on the strength and deformability of low porosity metasedimentary rocks under triaxial compression. Engineering Geology, no 126, 46–66, 2012.
  • [19] Małkowski P., Ulaszek A., Ostrowski Ł.: Optimization of roof coal thickness in the roof of longwall face as a result of water inflow into roof rocks. Przegląd Górniczy, Nr 3 48–57, 2014.
  • [20] Torok A., Vasarhelyi B.: The influence of fabric and water content on selected rock mechanical parameters of travertine, examples from Hungary. Engineering Geology, no 115, s. 237–245, 2010.
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Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-602bb3b9-de27-40be-a1c9-3532e2d8e65a
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