Journal of Northeastern University(Natural Science) ›› 2021, Vol. 42 ›› Issue (3): 401-408.DOI: 10.12068/j.issn.1005-3026.2021.03.015

• Mechanical Engineering • Previous Articles     Next Articles

Correlation Analysis of TBM Operating Parameters and Different Lithologic Strata

XIA Yi-min1,2, KE Jie1,2, QI Meng-xue3, DENG Chao-hui4   

  1. 1. State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China; 2. College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China; 3. China Railway 18 Bureau Group Tunnel Engineering Co., Ltd., Chongqing 400700, China; 4. China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430063, China.
  • Received:2020-03-30 Revised:2020-03-30 Accepted:2020-03-30 Published:2021-03-12
  • Contact: XIA Yi-min
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Abstract: In order to study the correlation between TBM operating parameters and different lithologic strata, taking a Xinjiang water diversion project as the background, 300 m of tunneling parameter data was selected for typical lithologic strata. The correlation between 3 tunneling parameters and 6 lithologic strata was analyzed by using mathematical statistics. By analyzing the correlation among propulsion speed, total thrust and cutter speed under the six types of lithologic strata, the tunneling suggestions were put forward. The results show that the average value of propulsion speed and total thrust varies greatly among different lithologic strata. The cutter speed fluctuates little, and the average difference is small. In siliceous, andesite and tuff strata, the total thrust, cutter speed and propulsion speed are not correlated. In mylonite and sandstone strata, the total thrust, cutter speed and propulsion speed are positively correlated. In cataclastic rock strata, the total thrust is negatively correlated with the propulsion speed.

Key words: TBM(tunnel boring machine); operating parameters; lithology; mathematical statistics; correlation analysis

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