Journal of Korean Tunnelling and Underground Space Association (한국터널지하공간학회 논문집)

Korean Tunnelling and Underground Space Association (한국터널지하공간학회)
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A study on the thrust force and torque calculation models in the design of shield TBM

쉴드 TBM 설계 시 추력과 토크 산정식들에 대한 고찰

  • Chong, Song-Hun (Dept. of Civil Engineering, Sunchon National University) ;
  • Lee, Seung-Hun (Dept. of Civil Engineering, Sunchon National University) ;
  • Ryu, Hee-Hwan (Structural & Seismic Tech. Group, Next Generation Transmission & Substation Laboratory, KEPCO Research Institute) ;
  • Kim, Hun-Tae (TBM Division of Energy & Machinery Korea Co., Ltd.)
  • 정성훈 (국립순천대학교 토목공학과) ;
  • 이승훈 (국립순천대학교 토목공학과) ;
  • 류희환 (한국전력공사 전력연구원 차세대 송변전연구소 구조내진연구실) ;
  • 김훈태 (이엠코리아(주) TBM영업팀)
  • Received : 2020.04.10
  • Accepted : 2020.04.29
  • Published : 2020.05.31
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Abstract

Rapid economic development and urban population growth have been increasing the necessity for underground space exploration and utilization due to the need of upgrading and expanding the existing infrastructures. TBM has been widely used to construct underground structures with high advance rate and minimal ground disturbance. Two important design parameters, which are available thrust capacity and cutterhead torque, should be estimated for any project in addition to proper selection of TBM type. However, the conventional thrust force and torque estimation model only depends on the empirical equation, which hinders the design process of the optimal thrust hydraulic system and the appropriate hydraulic components. In this study, four thrust and torque calculation models are derived and explained. For TBM design practice, the four estimation models are compared and discussed.

급속한 경제 발전과 도시 인구 증가는 기존의 인프라의 개선과 확대를 위한 지하 공간 활용의 필요성을 증가 시킨다. 쉴드 TBM (Tunnel Boring Machine)은 높은 굴진율과 최소한의 지반 교란이 필요한 지하 구조물 설계에 널리 이용되어 왔다. 허용 추력과 커터헤드 토크는 적절한 TBM 타입을 선택에 있어서, 중요한 설계 인자 이므로 TBM 공사 시에 적절히 산정되어야 한다. 하지만, 기존의 추력과 토크의 추정 모델은 오직 경험적인 인자와 TBM 직경에만 의존하고 있는 실정이다. 이는 최적의 추력 유압 시스템과 적절한 유압부품의 선택을 어렵게 한다. 본 연구에서는 4개의 추력 및 토크 계산 모델을 설명하고 정리하였으며, 각각의 모델들을 비교 및 논의하였다.

Keywords

References

  1. Ates, U., Bilgin, N., Copur, H. (2014), "Estimating torque, thrust and other design parameters of different type TBMs with some criticism to TBMs used in Turkish tunneling projects", Tunnelling and Underground Space Technology, Vol. 40, pp. 46-63. https://doi.org/10.1016/j.tust.2013.09.004
  2. Bilgin, N., Algan, M. (2012), "The performance of a TBM in a squeezing ground at Uluabat, Turkey", Tunnelling and Underground Space Technology, Vol. 32, pp. 58-65. https://doi.org/10.1016/j.tust.2012.05.004
  3. Bruland, A. (2000), Hard rock tunnel boring, Ph.D. Dissertation, Norwegian University of Science and Technology.
  4. Chang, S.H., Choi, S.W., Park, Y.T., Lee, G.P., Bae, G.J. (2013), "Experimental evaluation of the effects of cutting ring shape on cutter acting forces in a hard rock", Journal of Korean Tunnelling and Underground Space Association, Vol. 15, No. 3, pp. 225-235. https://doi.org/10.9711/KTAJ.2013.15.3.225
  5. Choi, S.W., Chang, S.H., Lee, G.P., Bae, G.J. (2011), "Statistical analysis of NTNU test results to predict rock TBM performance", Journal of Korean Tunnelling and Underground Space Association, Vol. 13, No. 3, pp. 243-260. https://doi.org/10.9711/KTAJ.2011.13.3.243
  6. JSCE (2007), Standard specifications for tunneling - shield tunnels, pp. 39-55.
  7. Kang, S.H., Kim, D.H., Kim, H.T., Song, S.W. (2017), "Study on the structure of the articulation jack and skin plate of the sharp curve section shield TBM in numerical analysis", Journal of Korean Tunnelling and Underground Space Association, Vol. 19, No. 3, pp. 421-435. https://doi.org/10.9711/KTAJ.2017.19.3.421
  8. Labra, C., Rojek, J., Onate, E. (2017), "Discrete/finite element modelling of rock cutting with a TBM disc cutter", Rock Mechanics and Rock Engineering, Vol. 50, No. 3, pp. 621-638. https://doi.org/10.1007/s00603-016-1133-7
  9. Rostami, J. (1997), "Development of a force estimation model for rock fragmentation with disc cutters through theoretical modelling and physical measurement of crushed zone pressure", Ph.D. Dissertation, Colorado School of Mines, Golden.
  10. Rostami, J., Ozdemir, L. (1993), "A new model for performance prediction of hard rock TBMs", Proceedings of the 11th Rapid Excavation and Tunneling Conference, Boston, pp. 793-809.
  11. Shi, H., Yang, H., Gong, G., Wang, L. (2011), "Determination of the cutterhead torque for EPB shield tunneling machine", Automation in Construction, Vol. 20, No. 8, pp. 1087-1095. https://doi.org/10.1016/j.autcon.2011.04.010
  12. Wang, L., Gong, G., Shi, H., Yang, H. (2012), "Modeling and analysis of thrust force for EPB shield tunneling machine", Automation in Construction, Vol. 27, pp. 138-146. https://doi.org/10.1016/j.autcon.2012.02.004
  13. Zhou, X.P., Zhai, S.F. (2018), "Estimation of the cutterhead torque for earth pressure balance TBM under mixed-face conditions", Tunnelling and Underground Space Technology, Vol. 74, pp. 217-229. https://doi.org/10.1016/j.tust.2018.01.025