Effect of the replacement of cutting tools on the performance of TBM in Tehran Metro Line 6

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Eftekhari Seyyed Mosleh; Bastami Mehdi

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Journal Paper

Paper Information

Journal: JOURNAL OF ANALYTICAL AND NUMERICAL METHODS IN MINING ENGINEERING Year:2020 | Volume:10 | Issue:24 Page(s): 63-76

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Information Journal Paper

Title

Effect of the replacement of cutting tools on the performance of TBM in Tehran Metro Line 6

Author(s)

Eftekhari Seyyed Mosleh | Bastami Mehdi | Issue Writer Certificate

Keywords

TBM performance

Cutting tool

Thrust

Torque

Penetration rate

Tehran metro line 6

Abstract

Improvement of the performance of TBM machine in tunneling has always been in the spotlight of research and development. The type of Cutting tools, which is selected based on the mechanical properties of the formations along the tunnel route, could affect the efficiency and production rate in tunneling. In Tehran metro line 6, the consumption of disc cutter increased with decreasing the efficiency of disc cutters, along with increasing the value of Thrust and Torque. Hence, some of the disc cutters of the TBM were replaced with ripper tools in order to improve the TBM performance. In this paper, the effect of this replacement on the performance of the TBM is examined by statistical analysis of the field measurements. The value of operational parameters-Thrust, Torque and Penetration rate of the TBM-in different sections before and after the replacement is investigated. The statistical analysis shows that the mean value of both Thrust and Torque as well as their standard deviations after the replacement have considerably decreased in comparison with the figures for before the replacement, while the mean value of Penetration rate has been approximately identical in both before and after the replacement of Cutting tools. The results show that this replacement of disc cutters with ripper tools in alluvial conditions of Tehran has improved the performance of TBM machine.

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APA: Copy

Eftekhari, Seyyed Mosleh, & Bastami, Mehdi. (2020). Effect of the replacement of cutting tools on the performance of TBM in Tehran Metro Line 6. JOURNAL OF ANALYTICAL AND NUMERICAL METHODS IN MINING ENGINEERING, 10(24 ), 63-76. SID. https://sid.ir/paper/390365/en

Vancouver: Copy

Eftekhari Seyyed Mosleh, Bastami Mehdi. Effect of the replacement of cutting tools on the performance of TBM in Tehran Metro Line 6. JOURNAL OF ANALYTICAL AND NUMERICAL METHODS IN MINING ENGINEERING[Internet]. 2020;10(24 ):63-76. Available from: https://sid.ir/paper/390365/en

IEEE: Copy

Seyyed Mosleh Eftekhari, and Mehdi Bastami, “Effect of the replacement of cutting tools on the performance of TBM in Tehran Metro Line 6,” JOURNAL OF ANALYTICAL AND NUMERICAL METHODS IN MINING ENGINEERING, vol. 10, no. 24 , pp. 63–76, 2020, [Online]. Available: https://sid.ir/paper/390365/en

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