Browse > Article
http://dx.doi.org/10.7474/TUS.2013.23.1.054

Three Dimensional Numerical Analysis on Rock Cutting Behavior of Disc Cutter Using Particle Flow Code  

Lee, Seung-Joong (Dept. of Energy & Resource Engineering, Kangwon National University)
Choi, Sung-Oong (Dept. of Energy & Resource Engineering, Kangwon National University)
Publication Information
Tunnel and Underground Space / v.23, no.1, 2013 , pp. 54-65 More about this Journal
Abstract
The LCM (Linear Cutting Machine) test is one of the most powerful and reliable methods for designing the disc cutter and for predicting the TBM (Tunnel Boring Machine) performance. It has an advantage to predict the actual load on disc cutter from the laboratory test on the real-size large rock samples, however, it also has a disadvantage to transport and/or prepare the large rock samples and to need an extra cost for experiment. In order to overcome this problem, lots of numerical studies have been performed. In this study, the PFC3D (Particle Flow Code in 3 Dimension) has been adopted for numerical analysis on optimum cutter spacing and failure aspects of Busan Tuff. The optimum cutting condition with s/p ratio of 16 and minimum specific energy of $14MJ/m^3$ was derived from numerical analyses. The cutter spacing for Busan Tuff had the good agreements with those of LCM test and numerical analysis by finite element method.
Keywords
Disc cutter; LCM test; PFC3D; Optimum cutter spacing;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Chang, S. H., Choi, S. W., Bae, G. J. and Jeon, S. W., 2007, A parametric study of rock properties and mechanical cutting conditions for deriving an optimum design model of a TBM cutterhead equipped with disc cutters, Journal of Korean Society of Civil Engineers, 27. 1C, 87-98.   과학기술학회마을
2 Cho, J. W., 2010, Linear cutting test and numerical study on the assessment of rock cuttability of a TBM disc cutter, Doctor's thesis of Seoul National University.
3 Cho, J. W., Yu, S. H., Jeon, S. W. and Chang, S. H., 2008, Numerical study on rock fragmentation by TBM disc cutter, Tunnelling Technology, 10. 2, 139-152.   과학기술학회마을
4 Itasca, 2004, PFC3D (Particle Flow Code in 3 Dimensions) Theory and Background 5, 4-9.
5 Jeong, H. Y., Jeon, S. W., Cho, J. W., Chang, S. H. and Bae G. J., 2011, Assessment of cutting performance of a TBM disc cutter for anisotropic rock by linear cutting test, Tunnel and Underground Space, 21. 6, 508-517.   과학기술학회마을
6 Korean Tunnelling and Underground Space Association, 2005, Technical advisory final report for shield tunnel excavation of Busan subway 230 area, 176-202.
7 KSRM, 2005, Numerical analysis of rock mechanics, Gunsulbook, 239-243.
8 MLTM, 2007, Development of optimized excavation model for mechanized construction of rapidly tunnel, Reserch report, 168-213.
9 Rostami, J. and Ozdemir, L., 1993, A new model for perfomance prediction of hard rock TBMs, Proc. Rapid Excavation and Tunneling Conference (RETC), 793-809.
10 Park, K. I., Chang, S. H., Choi, S. W. and Jeon, S. W., 2006, Prediction of the optimum cutting condition of TBM disc cutter in Korean granite by the linear cutting test, Proc. of KSRM Conf., 217-236.
11 Yu, S. H., 2007, A study on rock cutting behavior by TBM disc cutter, Master's thesis of Seoul National University.