Abstract
On the basis of reasonably simplifying the interaction process of TBM disc cutters and rock on tunneling surface, the shape of effective breaking pit is used as the lower boundary condition of vibration system and based on the equivalent stiffness method, two general differential equations of TBM disc cutter for vertical vibration are established, which are respectively suitable for hard rock, soft rock and soil. Taking an experimental disc cutter rolling granite as the example, through dynamic simulation, results show that vibration acceleration increases linearly with increased depth of the effective breaking pit and linear velocity of disc cutter and Nonlinearly decrease with increased width of the effective breaking pit; Besides satisfying the strength requirement, the selection of bearings and the design of cutter shaft should give dual attention to dynamics performance.
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Zhang, K., Xia, Ym., Tan, Q., Wang, K., Yi, Ne. (2009). Establishment of TBM Disc Cutter Dynamic Model for Vertical Vibration. In: Xie, M., Xiong, Y., Xiong, C., Liu, H., Hu, Z. (eds) Intelligent Robotics and Applications. ICIRA 2009. Lecture Notes in Computer Science(), vol 5928. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-10817-4_37
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DOI: https://doi.org/10.1007/978-3-642-10817-4_37
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-10816-7
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