Research on the Interaction of Tunnel Surrounding Rock Masses and Supporting Structure
To reveal the mechanical property on the interface between the surrounding rock and the supporting structure, inducting the definition of the interface, based on ABAQUS software, two finite element models were established to compare and analysis the interaction through the aspects of stress, deformation and plastic region of surrounding rocks and the resistance of supporting structure. At last, compare the simulative and the metrical results. The result shows that the ideal full-constraint between the surrounding rock and the supporting structure isn’t possibility. It becomes more reasonable to define an interface during the numerical analysis and design calculations, the selection of the constitutive relation of the interface is directly related to the accuracy of the numerical calculation results.
J. Fan et al., "Research on the Interaction of Tunnel Surrounding Rock Masses and Supporting Structure", Advanced Materials Research, Vols. 261-263, pp. 1515-1522, 2011