ISSN 2096-4498
CN 44-1745/U
ISSN 2096-4498
CN 44-1745/U
Prediction Model for Tunnel Boring Machine Cutterhead Rotation Speed Based on Field Penetration Index and Torque Penetration Index
(1.Sinohydro Bureau 6 Co.,Ltd.,Shenyang 110179,Liaoning,China;2.China Institute of Water Resources and HydropowerResearch,Beijing 100048, China;3.China Railway Engineering Equipment Group Ltd.,Co.,Zhengzhou 450016,Henan,China;4.Yunnan Agricultural University,Kunming 650201,Yunnan,China)
Online published: 2023-03-27
To reasonably arrange the rotation speed of tunnel boring machine(TBM) cutterhead during construction in different surrounding rock conditions, a prediction model for rotation speed of cutterhead is established based on essential rock breaking parameters such as penetration degree, thrust, and torque while introducing field penetration index (FPI) and torque penetration index (TPI). Then, the relationships between these two indices and cutterhead rotation speed are analyzed. Finally, the statistical features and quantitative analysis of engineering data are employed. The model was applied in the Chaohe river waterdiversion TBM project, and the results show that the maximum error of cutterhead rotation speed in the typical fault zone cyclic sections is 0.36 r/min, and the mean absolute error of cutterhead rotation speed in the continuous cyclic sections is 0.55 r/min. The prediction model established can provide reference for reasonable arrangement of cutterhead rotation speed under different surrounding rock conditions.
XING Hai
,
WANG Shuangjing
,
YIN Tao
.
Prediction Model for Tunnel Boring Machine Cutterhead
Rotation Speed Based on
Field Penetration Index and Torque Penetration Index
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