Influence of Rock Inclination on the Relaxation and Deformation of the Surrounding Rock in Underground Chambers

In this paper, a generalized model of underground refuge is established with the size of a typical pumped storage power plant, and the values of rock parameters, contact surface parameters, stresses and boundary conditions are determined in the surrounding layers of the model. In order to analyze the influence of rock dip angles on the relaxation and deformation of underground caverns, we conducted numerical simulations on ten different rock dip angles. Comparison analysis of the deformation displacement and relaxation deformation characteristics of the surrounding rock under ten different inclination angles of rock formations is carried out, and the influence of the inclination angle of rock formations on the relaxation deformation of underground chambers is concluded.