Simulation of Transmission-Line Ground Deformation in Mined-Out Area

For the ground movement and deformation of transmission lines in mined-out area, applying finite element principle, established the model of finite element analysis for surface movement. By the physical and mechanical parameters of rock formation in the geological data, using mechanical incremental theory of plasticity, yield criterion for isotropic hardening laws, DP yield criterion and associated flow rules , simulated the surface subsidence and strata movement in mining area by the large-scale finite element analysis software ANSYS, obtained the curve of surface movement for this area, and could provide related reference for stability analysis of buildings in this mining area.