The Analysis of the Effects of the Fluid-structure Coupling Slope on TBM Inclined Surrounding Rocks

On the background of TBM slope mine project in the mining area of Taige Temple, Xinjie Town, Inner Mongolia, this paper uses FLAC3 Dsoftware to establish a 3Dmodel of RBM slope mine construction. Based on the fluid-solid coupling theory, this paper makes comparative analysis of RBM tunnel and TBM slope from three aspects: pressure of pore-space water, stress and deformation. In addition, this paper studies the influence of the slope gradient on the mechanical properties of the enclosing rock of the TBM slope mine. The results show that considering the fluid-solid coupling conditions, with the construction progress, the TBM slope mine would have higher values of stress and deformation at the haunch and the intrados than the counterpart values of the TBM tunnel. The slope gradient has significant influence on the deformation and stress of the enclosing rock of the TBM tunnel under rich water condition. The steeper the slope gradient is, the easier it is for the enclosing rock to lose stability. In particular, t