Three-Dimensional elastoplastic analysis of strain-softening surrounding rock based on the non-linear bond-slip relationship considering hydraulic-mechanical coupling

In this study, a three-dimensional elastoplastic analysis of strain-softened surrounding rock is performed considering the hydraulic-mechanical coupling. A numerical iterative method for the analysis of the surrounding rock is proposed, and the corresponding calculation procedure is given. The method takes into account the relative slip between the anchors and the surrounding rock. The shear stress and axial force distributions of the anchors under the corresponding working conditions are calculated by the established calculation procedure and saved in the proposed dataset.