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

Korean Tunnelling and Underground Space Association (한국터널지하공간학회)
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Evaluation of disc cutter penetration depth of shield TBM in practice

쉴드TBM의 현장 디스크커터 관입깊이에 대한 연구

  • Kim, Sang-Hwan (Department of Civil Engineering, Hoseo University) ;
  • Park, In-Joon (Department of Civil Engineering, Hanseo University) ;
  • Chang, Soo-Ho (Geo technical Engineering Research Division, Korea Institute of Construction Technology)
  • 김상환 (호서대학교 토목공학과) ;
  • 박인준 (한서대학교 토목공학과) ;
  • 장수호 (한국건설 기술연구원 Geo-인프라연구실)
  • Received : 2013.05.01
  • 심사 : 2013.05.27
  • 발행 : 2013.05.31
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초록

This paper describes the evaluation of shield TBM disc cutter penetration depth in practice. In this study the disc cutter penetration depth used to design the excavation speed of tunnel is reviewed. The characteristics of ground encountered in the investigation site are analysed and evaluated. The shield TBM used in the field is reviewed to verify the applicability of machine in the site. The thrust and torque capacities of each TBM disc cutter are also evaluated. Based on the field data, the excavation volume and speed are re-analysed to evaluate the disc cutter penetration depth used in the design stage. It is clearly found that the design value of disc cutter penetration depth needs to modify when estimation of the TBM capacities in very hard rock formation ($S_c$ >150 MPa).

이 연구는 TBM의 디스크커터 관입깊이에 대하여 실질적인 현장을 통하여 평가한 것이다. 연구를 위하여 설계시 적용되는 디스크커터 관입깊이에 대하여 검토하였다. 또한 대상 현장에 대한 지반특성에 대하여 검토하고 현장에 투입된 장비에 대한 적용성에 대하여 분석하였다. 특히 장비의 용량분석을 실시하여 적합성에 대하여 평가하였다. 이러한 평가결과와 현장 공사자료를 근거로 실질적인 TBM의 공사량과 굴진속도를 분석하였다. 이 결과로부터 설계시 적용된 TBM의 디스크커터 관입깊이에 대하여 재평가 하였다. 연구 결과로부터 설계시 적용되는 디스크커터 관입깊이는 특히 극경암 지반($S_c$ >150 MPa)에 있어서 적용값의 변경이 필요하다는 것을 명백히 보여주었다.

키워드

참고문헌

  1. Gong, Zhao, Jiao. (2005), "Numerical modeling of the effects of joint orientation on rock fragmentation by TBM cutters." Tunnelling and Undergruond Space Technology 20, pp. 183-191. https://doi.org/10.1016/j.tust.2004.08.006
  2. Graham, P.C. (1976), "Rock exploration for machine manufacturers, in exploration for rock engineering", In : Bieniawski, Z.T. (Ed.) Proceedings of the Symposium, Vol. 1, Johannesburg, Balkema, pp. 173-180.
  3. Hood, M., Alehosseine, H. (2000), "A development in rock cutting technology", International Journal of Rock Mechanics and Mining Sciences 37, pp. 297-305. https://doi.org/10.1016/S1365-1609(99)00107-0
  4. Hughes, H.M. (1986), "The relative cuttability of coal measures rock.", Mining Sci. Technol. 3, pp. 95-109. https://doi.org/10.1016/S0167-9031(86)90250-1
  5. Movinkel, T., Johannessen, O. (1986), "Geological parameters for hard rock tunnel boring.", Tunnels Tunneling 4: pp. 45-48.
  6. Nelson, P.P., Ingraffea, A.R., O'ROURKE, T.D. (1985), "TBM performance prediction using rock fracture parameter", International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, Vol. 22, Issue 3, pp. 189-192.
  7. Roby, J., Sandell T., Kocab, J., Lindbergh, L. (2008), "The current state of disc cutter design and development directions", Proceedings of 2008 North American Tunnelling Conference. (NAT2008), Society for Mining, Metallurgy & Exploration, pp. 36-45.
  8. Rostami, J., Ozdemir, L. (1993), "A new model for performance prediction of hard rock tbms", Proc. of Rapid Excavation and Tunneling Conference (RETC), Boston, USA, pp. 793-809.
  9. Korea Electric Power Corporation. (2009) "Guideline of TBM construction cost estimation", KEPCO, pp. 2-131.

피인용 문헌

  1. Manufacturing of an earth pressure balanced shield TBM cutterhead for a subsea discharge tunnel and its field performance analysis vol.16, pp.2, 2014, https://doi.org/10.9711/KTAJ.2014.16.2.161