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1993 Fiscal Year Final Research Report Summary

Development of Testing Method for Performance of TBM Disc Cutters in Circular Rock Cutting

Research Project

Project/Area Number 04555145
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 資源開発工学
Research InstitutionMuroran Institute of Technology

Principal Investigator

SATO Kazuhiko  Muroran Institute of Technology, Department of Computer Science and Systems Engineering, Professor, 工学部, 教授 (30002009)

Co-Investigator(Kenkyū-buntansha) ITAKURA Ken-ichi  Muroran Institute of Technology, Department of Computer Science and Systems Engi, 工学部, 助教授 (20168298)
Project Period (FY) 1992 – 1993
KeywordsTunnel boring machines / Disc cutters / Gauge Cutters / Tool force / Performance test
Research Abstract

TBM disc cutters can be clustered into two groups depending on their locations mounted on the cutter head of a TBM ; ones are face cutters and others are gauge cutters. A rock cutting rig which has been installed in the present investigation allows us to test the performance of both types of disc cutters. In addition, the rig facilitates rock cutting along circular tracks as well as conventional linear cutting. Laboratory experiments using a circular rock cutting rig are promising for predicting the performance of TBMs and raise bore machines since these machines work in circular cutting mode. A dynamometer which is dedicated to the test rig allows us to detect not only the three perpendicular components of tool force, but the twist around the thrust.
The experiment using a TBM gauge cutter provided newly empitical formulae by which we can predict thrust and torque needed to a given penetration of a gauge cutter. The formulae suggest that a gauge cutter with a plunge angle of alpha from the machine thrust should be equivalent to a face cutter with an additional edge angle of 2alpha, as far as tool force is concerned. Accordingly the formulae give a rational explanation for gauge cutters being subject to more harmful resistance than face cutters. Further investigations were carried out to explore the counter measures to reduce the resistance exerted on gauge cutters and to prolong their life-spans. The experimental results showed that the tool force for a gauge cutter could remain as low as for a face cutter whenever the normal of excanvated rock surface has an inclination being close to the plunge angle alpha of a guage cutter.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] 〓 放鳴: "円周軌道切削における岩石の切削抵抗" 資源・素材学会誌. 108. 557-562 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 〓 放鳴: "円周軌道切削における最適切削条件および最大切削抵抗" 資源・素材学会誌. 108. 849-854 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kazuhiko SATO: "Measurement of tool force and twist exerted on TBM disc cutters." Proceedings of the Second International Symposium on Mine Mechanization and Automation,Lulea,Sweden.271-278 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 〓 放鳴: "TBMゲージカッタに作用する切削抵抗" 資源・素材学会誌. 110. (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 〓 放鳴: "TBMゲージカッタに作用する切削抵抗の抑制方法について" 資源・素材学会誌. 110. (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] GONG Fangming SATO Kazuhiko ASAI Hideaki: "Tool force acting on a disc cutter during circular rock cutting - Study on disc cutting of rock (1st Report) -" Journal of the Mining and Material Processing Institute of Japan. 108. 557-562 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] GONG Fangming SATO Kazuhiko ASAI Hideaki: "Optimal cutting condition and maximal force in circular rock cutting - Study on disc cutting of rock (2st Report) -" Journal of the Mining and Material Processing Institute of Japan. 108. 849-854 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] SATO Kazuhiko GONG Fangming ITAKURA Ken-ichi: "Measurement of tool force and twist exerted on TBM disc cutters." Proceedings of the Second International Symposium on Mine Mechanization and Automation, Lulea, Sweden. 271-278 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] GONG Fangming SATO Kazuhiko UCHIUMI Chihiro: "Tool force and twist acting on TBM gauge cutters - Study on disc cutting of rock (3rd Report) -" Journal of the Mining and Material Processing Institute of Japan. 110. (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] GONG Fangming SATO Kazuhiko UCHIUMI Chihiro: "Design criterion for restricting tool force exerted on TBM gauge cutters - Study on disc cutting of rock (4th Report) -" Journal of the Mining and Material Processing Institute of Japan. 110. (1994)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1995-03-27  

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