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http://dx.doi.org/10.9711/KTAJ.2018.20.6.1091

Case study: application of NAT (New Abrasion Tester) for predicting TBM disc cutter wear and comparison with conventional methods  

Kim, Dae-Young (Dept. of R&D, Hyundai Engineering & Construction)
Shin, Young-Jin (Dept. of R&D, Hyundai Engineering & Construction)
Jung, Jae-Hoon (Dept. of R&D, Hyundai Engineering & Construction)
Kang, Han-Byul (Dept. of R&D, Hyundai Engineering & Construction)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.20, no.6, 2018 , pp. 1091-1104 More about this Journal
Abstract
Wear prediction of TBM disc cutters is a very important issue during design as well as construction stages for hard rock TBMs as the cutter head intervention is directly related to the time and cost of tunneling. For that, some methods such as NTNU, CSM and Gehring models were used to predict disc cutter wear and intervention interval. There are however some problems to be addressed in these models in terms of accuracy and time for testing, so that a NAT (New Abrasion Tester) model has been developed in order to achieve simplicity and reliability together at the same time (Farrokh and Kim, 2018). On the basis, the proposed NAT model has been applied to ${\bigcirc}{\bigcirc}$ project in Korea. A comparative study was performed to compare with the conventional methods and as a result the NAT model showed a very good agreement with actual cutter life. The NAT model will be further applied to other projects to establish credibility.
Keywords
Disc cutter; Abrasion Prediction Model; NAT (New abrasion Tester);
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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