Tunnel and Underground Space (터널과지하공간)

Korean Society for Rock Mechanics and Rock Engineering (한국암반공학회)
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Stability and Deformation Analysis Considering Discontinuities in Rock Mass

불연속면을 고려한 암반의 안정변형해석

  • Received : 2015.02.09
  • Accepted : 2015.02.24
  • Published : 2015.02.28
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Abstract

Rock mass includes such discontinuities as fault, joint, bedding, crack, schistosity, cleavage. The rock mass behavior, therefore, is influenced by the discontinuity behavior. In this study, a stability and deformation analysis method considering discontinuities in rock mass is proposed, and then applied to the rock collapse disaster site. As the method, the stability analysis by the stereographic projection method was carried out in an actual site, the deformation analysis program by the finite element method including the joint element was developed, and performed. To demonstrate the applicability of this developed stability and deformation analysis method considering discontinuities in rock mass, the analysis results are examined and compared with the failure behavior at the rock mass.

암반에는 단층 절리 층리 균열 편리 벽개 등 불연속면이 포함되어 있다. 따라서, 불연속면을 포함한 암반의 역학적 거동은 연속체와는 다르게 불연속면의 역학적 거동에 좌우된다. 본 연구에서는 불연속면을 고려한 암반의 안정변형해석기법을 제안하고, 암반 붕괴재난현장에 적용했다. 암반 불연속면을 고려하여 평사투영법에 의한 안정해석과 개별절리요소를 포함한 유한요소법에 의한 변형해석 프로그램을 개발하여, 실제 암반 붕괴 재난현장 지역에서의 해석결과와 비교 및 검토를 하였다. 암반 현장에 적용하여 결과를 비교 검토함으로써, 암반의 파괴 거동 해석에 있어서 개발한 불연속면을 고려한 암반의 안정변형해석법의 적용성에 대한 검증을 하였다.

Keywords

References

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