Fig. 1. Rock cutting mechanism of conventional disc cutter
Fig. 2. Rock cutting mechanism of undercutting; (a) conceptual diagram, and (b) example of its application (Modified from Van Dan Berg, 2014)
Fig. 3. Pictures of undercutting machines manufactured by Wirth; (a) CMM, and (b) MTM
Fig. 4. Pictures of TBE manufactured by Wirth; (a) conceptual design, and (b) cutter head
Fig. 5. Pictures of longwall shearers; (a) ARM-1100 by Sandvik, and (b) HRM by CAT
Fig. 6. Oscillated Disc Cutting (Ghamgosar et al., 2015)
Fig. 7. Pictures of ADC; (a) trajectory of ADC, and (b) lab-scale equipment (Dehkoda and Detournay, 2017)
참고문헌
- CAT website, online information: https://www.cat.com/en_US/campaigns/awareness/rock- straight-system.html
- Cho, J., Jeon, S., Yu, S., and Chang, S., 2010, Optimum spacing of TBM disc cutter: A numerical simulation using the three-dimensional dynamic fracturing method. Tunnelling and Underground Space Technology, 25(3), pp. 230-244. https://doi.org/10.1016/j.tust.2009.11.007
- Dehkhoda, S., and Detournay, E., 2017, Mechanics of actuated disc cutting. Rock Mechanics and Rock Engineering, 50(2), pp. 465-483. https://doi.org/10.1007/s00603-016-1121-y
- Ghamgosar, M., Erarslan, N., 2015, A numerical study on oscillating disc cutting (ODC) technology for hard rock cutting, Proceedings of International Symposium on Rock Mechanics Congress 2015, Montreal, Canada.
- Hood, M., Alehossein, H., 2000, A development in rock cutting technology' International Journal of Rock Mechanics and Mining Sciences, 37(1-2), pp. 297-305. https://doi.org/10.1016/S1365-1609(99)00107-0
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- Jeong, H., Jeon, S., Cho, J., Chang, S., and Bae, G., 2011, Assessment of cutting performance of a TBM disc cutter for anisotropic rock by linear cutting test. Tunnel & Underground Space, 21(6), pp. 508-517. https://doi.org/10.7474/TUS.2011.21.6.508
- Korea Institute of Construction and Building technology (KICT), 2015, Development of underground excavation and stabilization technologies for expansion of underground space in use, Annual report, pp. 1-2.
- Pickering, R., Smit, A., and Moxham, K., 2006, Mining by rock cutting in narrow reefs. Proceedings of International Platinum Conference 'Platinum Surges Ahead', Sun City, South Africa, pp. 221-230.
- Ramezanzadeh, A., and Hood, M., 2010, A state-of-the-art review of mechanical rock excavation technologies. Jounral of Mining Environment, 1(1), pp. 29-39.
- Rostami, J., and Ozdemir, L., 1993, A new model for performance prediction of hard rock TBMs. Proceedings of Excavation and Tunnelling Conference (RETC), Boston, USA, pp. 793-809.
- Sala, A., and Gattli, M., 2007, Zurich's longest tunnel: in depth review. Tunnelling and Trenchless Construction, pp. 12-16.
- Van Dan Berg, D.P., 2014, 'Rock cutting'- platinum mining of the future? Proceedings of the 6th International Platinum Conference, 'Platinum-Metalfor the Future'. Sun City, South Africa. Southern African Institute of Mining and Metallurgy, Johannesburg. pp. 225-236.
- Weber, W., 1995, Driving different cross-sections using undercutting technology- the development of a new type of cutting machine. Tunnels and Tunnelling, pp. 74-80.