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

TBM圆盘滚刀圆岩切削性能测试方法的研制

• 批准号: 04555145
• 负责人: SATO Kazuhiko
• 金额: $ 2.24万
• 依托单位: Muroran Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04555145/
• 关键词: Tunnel boring machines; Disc cutters; Gauge Cutters; Tool force; Performance test

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.

TBM 盘式滚刀根据其安装在 TBM 刀盘上的位置可分为两组：一些是面铣刀，另一些是规规铣刀。本次调查中安装的岩石切割设备使我们能够测试两种类型的盘式切割机的性能。此外，该钻机还可以沿着圆形轨道进行岩石切割以及传统的线性切割。使用圆形岩石切割设备进行的实验室实验有望预测 TBM 和天井机器的性能，因为这些机器以圆形切割模式工作。试验台专用的测功机不仅可以检测工具力的三个垂直分量，还可以检测推力周围的扭转。使用 TBM 保径铣刀的实验提供了新的经验公式，通过该公式我们可以预测给定保径铣刀穿透力所需的推力和扭矩。这些公式表明，就刀具力而言，由机器推力产生的切入角为 α 的量规铣刀应相当于附加刃角为 2α 的面铣刀。因此，这些公式对保径铣刀比端面铣刀受到更大的有害阻力给出了合理的解释。进一步研究了减少保径铣刀阻力并延长其使用寿命的对策。实验结果表明，只要开挖岩石表面法线的倾角接近保径铣刀的切入角 α，保径铣刀的刀具力就可以保持与面铣刀一样低。

项目成果

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)

SATO Kazuhiko GONG Fangming ITAKURA Ken-ichi：“测量 TBM 盘形铣刀上施加的刀具力和扭转。”

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)

宫方明 佐藤和彦 内海千寻：“限制TBM保径铣刀刀具力的设计准则——岩石圆盘切削研究（第4次报告）——”日本采矿与材料加工研究所学报。

Kazuhiko SATO: "Measurement of tool force and twist exerted on TBM disc cutters" Proceedings of the Second International Symposium on Mine Mechanization and Automation. 271-278 (1993)

佐藤和彦：“TBM 圆盘铣刀上施加的工具力和扭转的测量”第二届国际矿山机械化与自动化研讨会论文集。

〓 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)

〓 声音发射：“圆周轨道切割时岩石的切割阻力”日本自然资源与材料学会杂志 108. 557-562 (1992)。

〓 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)

〓 发布：“圆周轨道切削中的最佳切削条件和最大切削力”日本自然资源和材料学会杂志 108. 849-854 (1992)。