Summary
Shore hardness has been used to estimate some mechanical and physical properties of rocks for many years. This study differs from previous studies in a way that it is directly oriented to rock cuttability. Two Shore hardness values (SH 1 andSH 2) and a coefficient of deformation value (K) have been measured for 30 different rock samples. In the first stage of the study, optimum specific energy values for 16 different rock samples obtained from full-scale cutting tests were correlated with the Shore hardness values of the same rock samples changingSH 1 values from 9 to 66 andSH 2 values from 25 to 83, with deformation coefficient values changing from 26 to 195. In the second stage, the performance of a roadheader used in the Küçüksu (Istanbul) tunnel was recorded in detail and the instantaneous cutting rate of the machine was determined. Then, the relationship between Shore hardness values, deformation coefficient and the instantaneous cutting rate of the machine was determined for different formations encountered. It is concluded that there is a relationship between Shore hardness values, optimum specific energy and compressive strength, which may be used to estimate the rock cuttability and the instantaneous cutting rates of roadheaders within certain limits of reliability.
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R. Altındağ (2002) ArticleTitleEffects of specimen volume and temperature on measurements of Shore hardness Rock Mech. Rock Engng. 35 109–113 Occurrence Handle10.1007/s006030200014
R. Altındağ A. Güney (2005) ArticleTitleEffect of the specimen size on the determination of consistent Shore hardness values Int. J. Rock Mech. Min. Sci. 42 153–160 Occurrence Handle10.1016/j.ijrmms.2004.08.002
C. Balcı M. A. Demirçin H. Çopur H. Tunçdemir (2004) ArticleTitleEstimation of specific energy based on rock properties for assessment of roadheader performance J. S. Afr. Instit. Mini. Metallurg. 11 633–643
Bilgin, N., Yazici, S., Eskikaya, S. (1996): A model to predict the performance of roadheaders and impact hammers in tunnel drivages. In: Barla, G. (eds.) Eurock 96, pp 29–32.
Bilgin, N., Balcı, C., Eskikaya, Ş., 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 roadheaders 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.
Bilgin, N., Tumaç, D., Ferdunoğlu, C., Karakas, A. R., Akgül, M. (2005): The performance of a roadheader in high strength rock formation in Küçüksu tunnel. In: Erdem, Y., Solak, T. (eds.) Proc., 31st World Tunnel Congress, Underground Space Use Turkey. Balkema, Rotterdam.
N. Bilgin M. A. Demirçin H. Çopur C. Balcı H. Tunçdemir N. Akçin (2006) ArticleTitleDominant rock properties effecting the performance of conical picks and the comparison of some experimental and theoretical results Int. J. Rock Mech. Min. Sci. 43 139–156 Occurrence Handle10.1016/j.ijrmms.2005.04.009
H. Çopur H. Tunçdemir N. Bilgin T. Dinçer (2001) ArticleTitleSpecific energy as a criteria for the use of rapid excavation systems in Turkish mines Institution of Mining and Metallurgy, Transactions A, Mining Technol. 110 IssueIDA 149–157
A. H. Deliormanlı T. Onargan (2000) ArticleTitleAn investigation of the correlation between index and impact resilience on marbles J. Engng. 10 IssueID1 13–16
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.
Eskikaya, Ş., Bilgin, N., Ozdemir, L. et al. (2000): Development of rapid excavation technologies for the Turkish Mining and Tunnelling Industries. NATO TU Excavation SfS Programme project report. Istanbul Technical University, Faculty of Mines, p 172.
Farmer, I. W., Garritty, P. (1987): Prediction of Roadheader cutting performance from fracture toughness considerations. In: Herget, G., Vongpaisal, S. (eds.) Proc., 6th Int. Congr. Rock Mechanics, 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, Newcastle Upon Tyne, 239–242.
Fowell, R. J., Johson, S. T. (1991): Cuttability assessment applied to drag tool tunnelling machines. In: Wittke, W. (ed.) Proc., 7th ISRM Congress, Aachen, 985–990.
Gehring, K. H. (1989): A cutting comparisons. Tunnel Tunnelling, November, 27–30.
K. H. Gehring (1997) ArticleTitleClassification of drillability, cuttability, boreability and abrasivity in tunnelling Felsbau 15 183–191
H. Hughes (1972) ArticleTitleSome aspects of rock machining Int. J. Rock Mech. Min. Sci. 9 205–211 Occurrence Handle10.1016/0148-9062(72)90023-X
InstitutionalAuthorNameISRM (1978) ArticleTitleCommission on standardisation laboratory and field results. Suggested methods for estimating hardness and abrasivity of rocks Int. J. Rock Mech. Min. Geomech. 15 89–97
Johson, S. T., Fowell, R. J. (1984): A rational approach to practical performance assessment for rapid excavation using boom-type tunnelling machines. In: Dowding, C. H., Singh, M. M. (eds.) Proc., 25th Symposium on Rock Mechanics, Illinois, 759–766.
Judd, W. R., Huber, C. (1962): Correlation of rock properties by statistical methods. In: Clark, G. B. (ed.) International Symposium on Mining Research 2, 621–648.
S. Kahraman N. Bilgin C. Feridunoğlu (2003) ArticleTitleDominant rock properties affecting the penetration of percussive drills Int. J. Rock Mech. Min. Sci. 40 711–723 Occurrence Handle10.1016/S1365-1609(03)00063-7
E. C. Kocagül P. M. Santi (1999) ArticleTitlePredicting the unconfined compressive strength of the Breathitt shale using slake durability, Shore hardness and rock structural properties Int. J. Rock Mech. Min. Sci. 36 139–153 Occurrence Handle10.1016/S0148-9062(98)00174-0
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., 2nd Int. Workshop on Scale Effect on Rock Masses, 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. et al. (eds.) Geotechnical engineering of hard soils-soft rocks, 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.
McFeat-Smith, I. (1977): Rock property testing for the assessment of tunnelling machines performance. Tunnels Tunnelling, March, 29–33.
McFeat-Smith, I., Fowell, R. J. (1977): Correlation of rock properties and cutting performance of tunnelling machines. In: Potts, E. L. J., Attewell, P. B. (eds.) Proc., Conference on Rock Engineering. University of Newcastle Upon Tyne, 582–602.
McFeat-Smith, I., Fowell, R. J. (1979): The selection and application of roadheaders for rock tunnelling. In: Maevis, A. C., Hustrulid, W. A. (eds.) Proc., Rapid Excavation and Tunnelling Conference, AIME, Atlanta, 261–279.
M. Mellor (1972) ArticleTitleNormalization of specific energy values Int. J. Rock Mech. Min. Sci. 9 661–663 Occurrence Handle10.1016/0148-9062(72)90016-2
Poole, D. (1987): The effectiveness of tunnelling machines. Tunnels Tunnelling, January, 66–67.
Poole, D., Farmer, I. (1978): Geotechnical factors affecting tunnelling machine performance in coal measures rock. Tunnels Tunnelling, Dec., 27–30.
H. Rabia N. Brook (1978) ArticleTitleThe Shore hardness of the rock Int. J. Rock Mech. Min. Sci. Geomech. Abstr. 16 335–336 Occurrence Handle10.1016/0148-9062(79)90245-6
Rostami, J., Ozdemir, L. (1994): Roadheader performance optimization for mining and civil construction In: Demers, J. E. et al. (eds.) Proc., 13th Annual Technical Conference, Institute of Shaft Drilling Technology, 1–17.
Rostami, J., Ozdemir, L., Neil, D. (1994): Performance prediction, a key issue in mechanical hard rock mining. Mining Engineering. November, 1264–1267.
Schneider, H. (1998): Criteria for selecting a boom type roadheader. Mine Magazine, September, 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, 299–303.
Su, O., Akçin, N., Toroğlu, I. (2004): The relationship between grindability and strength index properties of coal (in Turkish). In: Proc., 14th Turkey Coal Congress, Zonguldak, June, 77–86.
J. Szlavin (1974) ArticleTitleRelationship between some physical properties of rock determined by laboratory tests Int. J. Rock Mech. Min. Sci. Geomech. Abstr. 11 57–66 Occurrence Handle10.1016/0148-9062(74)92649-7
Thuro, K., Plinninger, R. J. (1998): Geological limits in Roadheader excavation four case studies In: Lock, V. (ed.) Proc., 8th Int. IAEG Congress, Vancouver, 2, 3545–3552.
Thuro, K., Plinninger, R. J. (1999): Predicting roadheader advance rates. Tunnels Tunnelling, June, 36–39.
Uehigashi, K., Tokairin, Y., Ishikawa, K., Kikuchi, T. (1987): Possibility of rock excavation by boom-type tunnelling machines. In: Proc., 6th Australian Tunnelling Conference, Melbourne, 253–259.
E. Yaşar Y. Erdoğan (2004) ArticleTitleEstimation of physico mechanical properties using hardness methods Engng. Geol. 71 281–288 Occurrence Handle10.1016/S0013-7952(03)00141-8
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Tumac, D., Bilgin, N., Feridunoglu, C. et al. Estimation of Rock Cuttability from Shore Hardness and Compressive Strength Properties. Rock Mech. Rock Engng. 40, 477–490 (2007). https://doi.org/10.1007/s00603-006-0108-5
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DOI: https://doi.org/10.1007/s00603-006-0108-5