The penetration prediction of disc cutter of fullface
tunnel boring machine (TBM) is conducted. The rockbreaking
process of TBM is qualitatively analyzed based on relevant data of Shenzhen
metro line 6 and the data processing function of TBM cloud management platform,
and as well it is divided into three stages macroscopically. The linear
regression method is used to quantitatively analyze the change of penetration
of TBM disc cutter in terms of the relationship between penetration and driving
thrust, and the relationship between penetration and cutterhead torque. In this
process, the parameter prediction model of penetration, thrust, and torque of
TBM driving is derived, and the prediction results of linear regression method
are verified by the field measurement results. The results show that: (1) The
penetration, thrust, and torque of TBM vary in different stages, and there is a
certain correlation among them. (2) The linear regression prediction model of
tunneling parameters is verified to be reasonable, which shows that the linear
regression method is suitable for the prediction of TBM tunneling parameters,
and can provide theoretical basis and reference for the adjustment of tunneling
parameters in the implementation stage of tunnel.
WANG Chao, LIU Hongzhong, WANG Lehu, TAN Junkun, CAI Ziyong
. Penetration Prediction of Disc Cutter of Tunnel Boring
Machine Based on Linear Regression Method[J]. Tunnel Construction, 2021
, 41(S1)
: 207
.
DOI: 10.3973/j.issn.2096-4498.2021.S1.026
