New hybrid stochastic-deterministic rock block analysis method in tunnels

터널의 신 하이브리드 추계학적-확정론적 암반블럭 해석기법

  • 황재윤 (부산광역시의회 정책연구실)
  • Received : 2010.05.07
  • Accepted : 2010.05.28
  • Published : 2010.05.31

Abstract

In many tunnels, falling or sliding of rock blocks often occur, which cannot be predicted because of the complexity of rock discontinuities and it has brought an exponential increase in costs and time to manage. It is difficult to estimate the properties of rock masses before the tunnel excavation. The observational design and construction method in tunnels has been becoming important recently. In this study, a new hybrid stochastic-deterministic rock block analysis method for the prediction of the unstable rock blocks before the tunnel excavation is proposed, and then applied to the tunnel construction based on actual rock discontinuity information observed in the field. The comparisons and investigations with the analytical results in the tunnel construction have confirmed the validity and applicability of this new hybrid stochastic-deterministic rock block analysis method in tunnels.

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