- 권한신청
- P-ISSN2233-8292
- E-ISSN2287-4747
- KCI
ISSN : 2233-8292
TBM 디스크 커터 마모 예측에 대한 NAT의 현장 적용 및 기존 방법과의 비교
Case study: application of NAT (New Abrasion Tester) for predicting TBM disc cutter wear and comparison with conventional methods
신영진 (현대건설)
정재훈 (현대건설 연구개발본부)
강한별 (현대건설 연구개발본부 대리)
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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 ○○ 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
- 디스크 커터, 마모 예측 모델, NAT (New Abrasion Tester), Disc cutter, Abrasion Prediction Model, NAT (New abrasion Tester)
참고문헌
1. Atkinson, T., Cassapi, V.B., Singh, R.N. (1986), “Assessment of abrasive wear resistance potential in rock excavation machinery”, International Journal of Mining and Geological Engineering, Vol. 4, No. 2, pp. 151-163.
2. Farrokh, E., Kim, D.Y. (2018), “A discussion on hard rock TBM cutter wear and cutterhead intervention interval length evaluation”, Tunnelling and Underground Space Technology, Vol. 81, pp. 336-357.
3. Jeong, H.Y., Lee, S.D., Jeon, S.W. (2014), “Estimation of design parameters of TBM using punch penetration and Cerchar abrasiveness test”, Journal of Korean Tunnelling and Underground Space Association, Vol. 16, No. 2, pp. 237-248.
4. Kim, D.Y., Farrokh, E., Jung, J.H., Lee, J.W., Jee, S.H. (2017), “Development of a new test method for the prediction of TBM disc cutters life”, Journal of Korean Tunnelling and Underground Space Association, Vol. 19, No. 3, pp. 475-488.
5. Ko, T.Y., Yoon, H.J., Son, Y.J. (2014), “A comparative study on the TBM disc cutter wear prediction model”, Journal of Korean Tunnelling and Underground Space Association, Vol.16, No. 6, pp. 533-542.
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