Tunnel and Underground Space (터널과지하공간)

Korean Society for Rock Mechanics and Rock Engineering (한국암반공학회)
권호 표지

Modelling for TBM Performance Prediction

TBM 굴진성능 예측을 위한 모델링

  • 이석원 (한국건설기술연구원 지반연구부) ;
  • 최순욱 (한국건설기술연구원 지반연구부)
  • Published : 2003.12.01
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Abstract

Modelling for performance prediction of mechanical excavation is discussed in this paper. Two of the most successful performance prediction models, namely theoretical based CSM model and empirical based NTH model, are discussed and compared. The basic principles of rock cutting with disc cutters, especially Constant Cross Section cutters, are discussed and a theoretical model developed is introduced to provide an estimate of disc cutting forces as a function of rock properties and the cutting geometry. General modelling logic for the performance prediction of mechanical excavation is introduced. CSM computer model developed and currently used at the Earth Mechanics Institute(EMI) of the Colorado School of Mines is discussed. Example of input and output of this model is illustrated for the typical operation by Tunnel Boring Machine(TBM).

본 논문에서는 터널 및 지하공간의 기계화 시공에 있어서 굴진성능을 예측하는 모델링 기법을 고찰하였다. 첫 번째로 세계적으로 가장 잘 알려져 있는 두 가지 모델, 즉 이론적 접근을 기본으로 하고 있는 CSM 모델과 경험적 접근을 기본으로 하고 있는 NTH 모델의 비교를 수행하였다. 두 번째로는, 특별히 Constant Cross Section 커터를 사용하는 경우의 암석 굴삭 원리를 알아보고, 이 원리를 기본으로 하는 이론적 모델을 전개하여 암석특성과 커터 제원만으로 유도되는 절삭력을 구하는 관계식을 고찰하였다. 세 번째로는 기계화 시공에 있어서 굴진성능을 예측하기 위한 일반적인 모델링 기법을 제시하였다. 마지막으로 미국 Colorado School of Mines의 Earth Mechanics Institute(EMI)에서 개발한 CSM 컴퓨터 모델을 소개하고, 이 모델을 TBM 설계에 적용한 사례를 제시하였다.

Keywords

References

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