List of products by author: B. S. Park

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  Behavior of the fragmental rocks during the tunnel excavation

  Abstract: When a tunnel is excavated, the ground around a tunnel deforms locally and the deformation shape can be influenced by the ground characteristics, the tunnel size and the excavating order. In general, when the bench cut or full face cutting is used by tunnelling, the uniform deformation shape would be occurred above a tunnel crown. Terzaghi(1954) demonstrated that the ground arching (Murayama...

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