Some experiments in-situ and in laboratory to determine the physico-mechanical properties of coal
More details
Hide details
Gospodarka Surowcami Mineralnymi – Mineral Resources Management 2009;25(3):79–96
A number of simple field and laboratory studies and tests were carried out to visualize the nature and variation extent of mechanical properties with emphasis on cuttability across C1 coal seam in Parvade1 mine of Tabas located in east of Iran. Selection of the suitable coal winning machines and of the most effective and fitness bits for it and their arrangement on cutter head have a special relation to reach maximum productivity with minimum energy consumption. The effect of physico-mechanical properties on cuttability were studied in the laboratory and field for the C1 coal seam to identify the relevant parameters affecting the specific energy of coal cuttability. Field studies were also in-situ cuttability along with conducted over a number of active mechanized coal faces to study the geo-mining conditions of the site. The field and the laboratory data of coal cuttability was estimated due to the achieved results of uni-axial, shear, and tensile strength tests, as well as, Impact strength index, expanding bolt, and M.R.E. penetration tests on C1 coal seam.
Eksperymenty przeprowadzane in-situ i w laboratorium dla określenia fizykomechanicznych właściwości węgla
właściwości fizykomechaniczne, testy polowe, urabialność, pokład C1 węgla, Tabas, Kopalnia Parvade1
Przeprowadzono szereg prostych badań i prób polowych oraz laboratoryjnych testów dla określenia mechanicznych właściwości, a w szczególności urabialności pokładu C1 węgla w kopalni Parvade1 w miejscowości Tabas w południowym Iranie. Wybór odpowiednich maszyn urabiających oraz najbardziej efektywnych noży na głowicy urabiającej ma szczególne znaczenie dla uzyskania maksymalnej wydajności przy minimalizacji zużycia energii. Wpływ właściwości fizykomechanicznych na urabialność został zbadany w laboratorium i testach polowych w pokładzie C1 węgla, dla określenia jakie parametry wpływają na jednostkowe zużycie energii w trakcie urabiania. Badania polowe obejmowały testy urabialności in-situ prowadzone w szeregu działających przodkach zmechanizowanych i dotyczyły badania warunków geologiczno-górniczych w kopalni. Dane dotyczące urabialności otrzymano dzięki wykorzystaniu wyników testów wytrzymałościowych jednoosiowego ściskania, ścinania i rozciągania, jak również wykonanych bezpośrednio na pokładzie węgla C1: testu wytrzymałościowego (ISI), kotwii rozprężnej oraz testu penetracyjnego (MRE).
Balc C., Demircin M.A., Copur H., Tuncdemir H., 2004 - Estimation of specific energy based on rock properties for assessment of road header performance. J. S. Afr. Instit. Mini. Metallurgy, pp. 11, 633-643.
Basarir H., Karpuz C., Tutluoglu B.L., 2008 - Specific energy based rippability classification system for coal measure rock. Journal of Terramechanics, No 45, pp. 51-62.
Bilgin N., Yazici S., Eskikaya S., 1996 - A model to predict the performance of roadheaders and impact hammers in tunnel drivages. [In:] G. Barla, Editor, Proceedings of Eurock '96, Torino, Italy, Balkema, Rotterdam, Brookfield, pp. 29-32 and 715-720.
Bilgin N., Balc C., Eskikaya S., Ergunalp D., 1997a - Full scale and small scale cutting tests for equipment selection in a celestite mine. [In:] Strakos V. et al. (eds.) Sixth International Symposium on Mine Planning and Equipment Selection. Balkema, Rotterdam, pp. 387-392.
Bilgin N.,Kuzu C., Eskikaya S., 1997b - Cutting performance of jack hammers and road-headers in Istanbul metro drivages. [In:] Golser J., Hinkel W.J., Schubert W. (eds.) [In:] Proc., World Tunnel Congress '97. Tunnels for People, Vienna, pp. 455-460.
Bilim N., Ozkan I., 2008 - Determination of the effect of roof pressure on coal hardness and excavation productivity: an example from a Çayırhan lignite mine, Ankara, Central Turkey. International Journal of Coal Geology, No 75, pp. 113-118.
Brown E.T., 1981 - Rock Characterization, Testing and Monitoring: ISRM Suggested Methods, International Society for Rock Mechanics, Pergamon, Oxford, Commission of Testing Methods, pp. 211.
Chandra D., 1992 - Mineral Resources in India 5-Jharia Coalfield., Geological Society of India, Banglore, pp. 149.
Copur H., Tuncdemir H., Bilgin N., Dincer T., 2001 - Specific energy as a criteria for the use of rapid excavation systems in Turkishmines. Institution of Mining and Metallurgy, Transactions A, Mining Technol. 110 (A), pp. 149-157.
Dunn P.G., Howarth D.F., Schmidt S.P.J., Bryan I.J., 1997 - A review of non explosive excavation projects for the Australian metalliferrous mining industry. [In:] Gurgenci H., Hood M. (eds.) Proc., 4th International Symposium on Mine Mechanization and Automation. Brisbane, Queensland, A5-2/13.
Evans I., 1958 - Theoretical aspects of coal ploughing. [In:] W.H. Watton, Editor, Mechanical Properties of Non-Metallic Brittle Materials, Butterworths, London, pp. 451-468.
Evanc I., Pomeroy C.D., 1966 - The Strength, Fracture and Workability of Coal., Mining Research Establishment.
Farmer I.W., Garritty P., 1987 - Prediction of Road header cutting performance from fracture toughness considerations. [In:] Herget G., Vongpaisal S. (eds.) Proc., 6th Int. Congr. Rock Mechanics, pp. 621-624.
Fowell R.J., Johson S.T., 1982 - Rock classification and assessment of rapid excavation. [In:] Farmer I. (ed.) Proc., Symposium on Strata Mechanics, New castle Upon Tyne, pp. 239-242.
Fowell R.J., Johson S.T., 1991 - Cuttability assessment applied to drag tool tunneling machines. [In:] Wittke W. (ed.) Proc., 7th ISRM Congress, Aachen, pp. 985-990.
Gehring K.H., 1989 - A cutting comparisons. Tunnel Tunnelling, November, pp. 27-30.
Gehring K.H., 1997 - Classification of drillability, cuttability, boreability and abrasivity in tunneling. Felsbau15, pp. 183-191.
Hekimoglu O.Z., 1995 - The radial line concept for cutting head picks lacing arrangements. International Journal of Rock Mechanics and Mining Sciences & Geomechanics, pp. 301-311.
Hughes H., 1972 - Some aspects of rock machining. Int. J. Rock Mech. Min. Sci. 9, pp. 205-211.
IRITEC (Iran International Engineering Company), 2003 - Tabas Coal Mine Project, Detailed Design Report Volume 1, Underground Mine Revision B., pp. 19-22.
Johson S.T., Fowell R.J., 1984 - A rational approach to practical performance assessment for rapid excavation using boom-type tunneling machines. [In:] Dowding C.H., Singh M.M. (eds.) Proc., 25th Symposium on Rock Mechanics, Illinois, pp. 759-766.
Kahraman S., Bilgin N., Feridunoglu C., 2003 - Dominant rock properties affecting the penetration of percussive drills. Int. J. Rock Mech. Min. Sci. 40, pp. 711-723.
Krupa V., Krepelka F., Bejda J., Imrich P., 1993a - The cutting constant of the rock does not depend on scale effect of rock mass jointing. [In:] Cunha A.P.D. (ed.) Proc., 2 nd Int.Workshop on Scale Effect on Rock Masses, pp. 63-66.
Krupa V., Krepelka F., Sekula F., Kristova Z., 1993b - Specific energy as information source about strength properties of rock mass using TBM. [In:] Anagnostopoulos, A. etal. (eds.) Geotechnical engineering of hard soils- soft rocks, pp. 1475-1477.
Krupa V., Krepelka F., Imrich P., 1994 - Continuous evaluation of rock mechanics and geological information at drilling and boring. [In:] Olieveira L. et al. (eds.) Proc., 7th Int. Congress. Int. Assoc. Eng. Geol., Balkema, Rotterdam, pp. 1027-1030.
Matsui K., Shimada H., Kubota S., Anwar H.Z., Kramadibrata S., 1998 - Mine tunnel drivage by roadheader. [In:] N.I. Aziz and B. Indraratna, Editors, Proceedings of International Conference on Geomechanics/Ground Control in Mining and Underground Construction, The University of Wollongong, NSW, Australia, pp. 843-852.
McFeat-Smith I., Fowell R.J., 1977 - Correlation of rock properties and cutting performance of tunneling machines. [In:] Potts E.L.J., Attewell P.B. (eds.) Proc., Conference on Rock Engineering. University of New castle Upon Tyne, pp. 582-602.
McFeat-Smith I., Fowell R.J., 1979 - The selection and application of road headers for rock tunnelling. [In:] Maevis A.C., Hustrulid W.A. (eds.) Proc., Rapid Excavation and Tunnelling Conference, AIME, Atlanta, pp. 261-279.
Merchant M.E., 1944 - Basic mechanics of the metal cutting process. Journal of Applied Mechanics 66 (1944), pp. 168-175.
NISCOIR (National Iranian Steel Company) 1996 - Exploration Plan Report of Tabas Coal Region Volume 2, Parvadeh1 Mine.
Poole D., 1987 - The effectiveness of tunneling machines. Tunnels Tunnelling, January, pp. 66-67.
Rostami J., Ozdemir L., 1994 - Roadheader performance optimization formining and civil construction. [In:] Demers J.E. etal. (eds.) Proc., 13th Annual Technical Conference, Institute of Shaft Drilling Technology, pp. 1-17.
Rostami J., Ozdemir L., Neil D., 1994 - Performance prediction, a key issue in mechanical hard rock mining. Mining Engineering. November, pp. 1264-1267.
Roxborough F.F., Rispin A., 1973 - A laboratory investigation into the application of picks for mechanized tunnel boring in the lower chalk. Transactions of Institute of Mining Engineering 133, pp. 1-13.
Schneider H., 1998 - Criteria for selecting a boom type road header. Mine Magazine, pp. 183-187.
Sekula F., Krupa V., Krepelka F., 1991 -Monitoring of the rock strength characteristics in the course of full of face driving process. [In:] Rakowski Z. (ed.), Proc. Int. Conf. on Geomechanics, pp. 299-303.
Singh T.N., Singh R., 1989 - Scope of winning and utilisation of Jhama - the burnt coal. Fuel Science and Technology 9 2, pp. 93-100.
Singh R., Singh J.K., Singh T.N., Dhar B.B., 1995 - Cuttability assessment of hard coal seams. Geotechnical and Geological Engineering an International Journal 132, pp. 63-78.
Singh R., 1999 -Mining methods to overcome geo-technical problems during underground working of thick coal seams-case studies. Transactions of the Institution of Mining and Metallurgy (Section A Mining Industry) 18, pp. A121-A131.
Singh R., Singh A.K., Mandal P.K., 2002 - Cuttability of coal seams with igneous intrusions. International Journal of Rock Mechanics and Mining Sciences, pp. 127-137.
Speight H.E., Fowell R.J., 1987 - Road header performance studies using a full scale laboratory facility. [In:] Proceedings of 28th US Symposium on Rock Mechanics, Tucson, USA, pp. 973-980.
Thuro K., Plinninger R.J., 1998 - Geological limits in Road header excavation four case studies. [In:] Lock V. (ed.) Proc., 8th Int. IAEG Congress, Vancouver 2, pp. 3545-3552.
Thuro K., Plinninger R.J., 1999 - Predicting road header advance rates. Tunnels Tunnelling, pp. 36-39.
Tiryaki B., Cagatay Dikmen A., 2005 - Effects of rock properties on specific cutting energy in linear cutting of sandstone by picks. Rock Mech. Rock Engng., pp. 89-120.
Tumac D., Bilgin N., Feridunoglu C., Ergin H., 2006 - Estimation of Rock Cuttability from Shore ardness and compressive strength properties. Rock Mech. Rock Engng.
Uehigashi K., Tokairin Y., Ishikawa K., Kikuchi T., 1987 - Possibility of rock excavation by boom type tunneling machines. [In:] Proc., 6th Australian Tunneling Conference, Melbourne, pp. 253-259.
Walker S.F., 1902 - Coal cutting by machinery in the United Kingdom. Colliery Guardian, London, pp. 33.