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工程设计学报
Chinese Journal of Engineering Design  2024, Vol. 31 Issue (2): 263-270    DOI: 10.3785/j.issn.1006-754X.2024.03.128
Whole Machine and System Design     
Experimental study of vibration characteristics of TBM cutter holder system under typical strata
Yongguang ZHENG1(),Mei YANG2()
1.China Railway Engineering Equipment Group Co. , Ltd. , Zhengzhou 450016, China
2.College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
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Abstract  

During the rock breaking process of tunnel boring machine (TBM) cutter, the cutting stress generated by the strong impact load is transmitted to the cutterhead through the tool holder system, causing severe vibration of the tool holder system, resulting in bolt loosening and breaking, even cutter falling and other serious engineering problems. Therefore, the vibration characteristics of the TBM cutter holder system were studied by rock breaking experiments. The multi-function cutter cutting performance test bench was used to carry out cutter cutting experiments on the red sandstone and granite, and the data of three-directional load and cutter shaft vibration acceleration during the rock breaking process were collected. By comparing and analyzing the load-time history curve of cutter rock breaking under red sandstone and granite strata, the dynamic load change characteristics of cutter holder system during rock breaking and the vibration response characteristics of cutter shaft under different strata were obtained. The research results can provide a theoretical basis for the vibration reduction design of TBM cutter holder system.

Key words： tunnel boring machine      cutter rock breaking      cutter holder system      load characteristics      vibration response     
Received: 08 March 2023      Published: 26 April 2024
CLC:  TH 113.1  
Corresponding Authors: Mei YANG     E-mail: 15410648@qq.com;183701027@csu.edu.cn
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Cite this article:

Yongguang ZHENG,Mei YANG. Experimental study of vibration characteristics of TBM cutter holder system under typical strata. Chinese Journal of Engineering Design, 2024, 31(2): 263-270.

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https://www.zjujournals.com/gcsjxb/10.3785/j.issn.1006-754X.2024.03.128     OR     https://www.zjujournals.com/gcsjxb/Y2024/V31/I2/263


典型地层下TBM滚刀刀座系统振动特性实验研究

在全断面硬岩隧道掘进机（tunnel boring machine, TBM）滚刀破岩过程中，强冲击载荷下产生的切削应力通过刀座系统传递至刀盘，引起刀座系统剧烈振动，造成螺栓松动断裂甚至滚刀掉落等严重的工程问题。为此，通过开展破岩实验来研究TBM滚刀刀座系统的振动特性。利用多功能刀具切削性能测试实验台开展TBM滚刀切削红砂岩和花岗岩的实验，并采集滚刀破岩过程中的三向载荷和刀轴振动加速度数据。通过对比分析红砂岩和花岗岩地层下滚刀破岩的载荷—时间历程曲线，得到破岩过程中滚刀刀座系统载荷的动态变化特性，以及不同地层下滚刀刀轴的振动响应特性。研究结果可为TBM滚刀刀座系统的减振设计提供理论依据。


关键词： 全断面硬岩隧道掘进机,  滚刀破岩,  滚刀刀座系统,  载荷特性,  振动响应 
Fig.1 Multi-function cutter cutting performance test bench
Fig.2 Rock breaking load test system for cutter

岩石

类型

单轴抗压强度/MPa单轴抗拉强度/MPa弹性模量/GPa

密度/

(g/cm3)

红砂岩53.93.6623.12.23
花岗岩100.55.6711.82.66
Table 1 Mechanical parameters of red sandstone and granite
Fig.3 Fracture morphology of red sandstone and granite
Fig.4 Dynamic variation curves of three-directional load of cutter during cutting red sandstone
Fig.5 Dynamic variation curves of three-directional load of cutter during cutting granite
Fig.6 Vibration acceleration variation curves of cutter shaft during cutting red sandstone
Fig.7 Vibration acceleration variation curves of cutter shaft during cutting granite
Fig.8 Frequency domain curves of vibration acceleration of cutter shaft during cutting red sandstone
Fig.9 Frequency domain curves of vibration acceleration of cutter shaft during cutting granite
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