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Stability analysis of open stopes and backfill in longhole stoping method for Asikoy underground copper mine

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Warianty tytułu
PL
Analiza stabilności przodka podsadzonego przy wybieraniu stropowo-ścianowym dla kopalni miedzi Asikoy
Języki publikacji
EN
Abstrakty
EN
Within the scope of this study, forwarded to analyse the whole underground stability of the open stopes and pillars in the longhole stoping with post backfill method which is applied at Asikoy underground mine, a series of rock mechanics tests were carried out on the core samples taken from the ore (chalcopyrite), surrounding rock (basalt) and backfill material and the geomechanical properties of the samples were determined. In order to calculate the stress and deformation around underground openings, Phase2 which is a two-dimensional elastoplastic finite elements program was used and the stability analysis was performed separately for the open stopes and pillars.
PL
W ramach badań prowadzonych w celu określenia stabilności podziemnych wyrobisk i filarów przy wybieraniu stropowo-ścianowym z podsadzką zastosowanym w podziemnej kopalni Asikoy przeprowadzono badania wytrzymałościowe próbek pobranych z rudy (chalkopiryt), ze skał sąsiadujących (bazalt) oraz z materiału podsadzki. Określono geomechaniczne właściwości próbek. W celu obliczenia naprężeń i odkształceń w okolicy otworów podziemnych, zastosowano program Phase2 - oparty na metodzie elementów skończonych do analizy układów płaskich (2D) i wykorzystujący elementy sprężysto-plastyczne. Analizę stabilności przeprowadzono oddzielnie dla rejonów przodka wybierkowego i dla filarów.
Rocznik
Strony
375--387
Opis fizyczny
Bibliogr. 20 poz., rys., tab.
Twórcy
autor
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Bibliografia
  • Aubertin M., Li L., Arnoldi S., Belem T., Bussičre B., Benzaazoua M., Simon R., 2003. Interaction between backfill and rock mass in narrow stopes. SoilRock2003: 12th Panamerican Conference on Soil Mechanics and Geotechnical Engineering, Cambridge, Massachusetts, USA.
  • Baria G., 1984. Stability studies of underground openings at the Masua mine, Sardinla, Italy. Design and Performance of Underground Excavations, ISRM Symposium, Sept. 3-6, Cambridge, U.K., pp. 509-518.
  • Blake W., 1971. Destressing test at Galena mine Wallace, Idaho. AIME Centinnial Annual Meeting, New York.
  • Dowding C.H., Belytscnko T.B., Yen H.J., 1982. A coupled fi nite element-rigid block model for transient analysis of rock caverns. International Journal for Numerical and Analytical Methods in Geomechanics, vol. 7, issue 1, pp. 117-127.
  • Gönen, A., 2010. Etibakýr A.Ţ. Küre Bakýr Madeni Yeraltý Üretim Yönteminin Teknik ve Ekonomik Açýdan Ýrdelenmesi. (in Turkish) Yürütülmekte olan doktara tezi çalýţmasý, Dokuz Eylül Üniversitesi Fen Bilimleri Enstitüsü, Ýzmir.
  • Koç Ş., Unsal A., Kadýođlu Y.K., 1995. Küre (Kastamonu) cevherleţmelerini içeren volkanitlerin jeolojisi, jeokimyasý ve jeotektonik konumu. (in Turkish) MTA Dergisi 117, 41-54.
  • Köse H., Yalçýn E., Gönen A., 2007. Etibakýr A.Ţ. Aţýköy yeraltý bakýr iţletmesi ikinci etap (792m-605m kotu arasýndaki cevher rezervi için) yeraltý projesinin teknik açýdan deđerlendirilmesi. (in Turkish) Proje Raporu, Dokuz Eylül Üniversitesi Vakfý, Ýzmir.
  • Köse H., Yalçýn E., Gönen A., 2007. Aţýköy yeraltý iţletmesinde uygulanan dolgulu oda yönteminde oda ve topuklarýn duraylýlýđýnýn incelenmesi. (in Turkish) Proje Raporu, Dokuz Eylül Üniversitesi Vakfý, Ýzmir.
  • Kulhawy F.H., 1975. Stress and displacements around openings in homogenous rock. International Journal of Rock Mechanics and Mining Science, Volume 12, Issue 3, pp. 43-57.
  • Kuşçu Ý., Erler A., 2002. Pyrite deformation textures in the deposits of the küre mining district (Kastamonu-Turkey). Turkish Journal of Earth Sciences (Turkish J. Earth Sci.), Vol. 11, pp. 205-215.
  • Mitri H.S., Zhang L., Fotoohi K., 1995. 3D finite element modelling of mine-and-fill sequences. CAMI'95: 3th Canadian Conference on Computer Applications in the Mineral Industry, Montreal, October.
  • Mitri H.S., Zhang L., Fotoohi K., 1997. Finite element model for three-dimensional anaylsis of mine openings. Society for Mining, Metallurgy and Exploration, INC. Transactions Vol. 302, pp. 33-37.
  • Pariseau W.G., 1980. Finite element method applied in to cut and fi ll mining. Proceedings of International Conference on the Application of Rock Mechanics to Cut and Fill Mining, Sweden June, pp. 197-204.
  • Prusek S., Bock S., 2008. Assessment of rock mass stresses and deformations around mine workings based on threedimensional numerical modelling. Archives of Mining Sciences, Vol. 53, No 3, pp. 349-360.
  • RocScience, 2002. Phase2: 2D fi nite element program for calculating stresses and estimating support around underground excavations. Toronto, Canada.
  • Sinclair T.J.E., Shillabeer J.H., Herget G., 1981. Applications of a computer model to the analysis of rock - backfill interaction in pillar recovery operations. Application of rock mechanics to cut and fill mining, IMM, pp. 339-351.
  • Srivastava R.K., Sharma K.G., Varadarajan A., 1988. Analysis of stress in the pillar zone of twin circular interacting tunnels. International Conference on Numerical Methods in Geomechancis, Insbruck, Austria, April 11-18, 1989, pp. 1597-1600.
  • Wang S., Galloway L.M., Blandford G.E., 1985. 2-D And 3-D Finite Element Analyses Of Room-Pillar Mining Systems With Fiat And Rolling Coal Seams. Proc. 26th U.S. Symposium on Rock Mechanics, A. A. Balkema, Rotterdam, pp. 231-238.
  • Wold M.B., 1980. Numerical stress analysis of post pillar mining at the Dolphin mine, King Island, stage 1: Parametric study Australia. CSIRO Division of Applied Geomechanics, Technical report, No TR111, 42 pp.
  • Zhang L., Mitri H.S., 1992. 3D Modelling of undergorund mine structures with backfi ll. 94th CIM Annual General Meeting, April 26-30, Montreal, Canada.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ5-0021-0025
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