Research on Shoring Technology of Dynamic Pressure Roadway Based on Numerical Simulation Technology

Abstract

Considering the complicated fact that pressure appears obviously and it is difficult to control it during the process of roadway mining, greatly affecting the progress and efficiency of work, Hoek-Brown strength criterion is applied to the three-dimensional explicit finite difference method program-FLAC 3D so as to simulate the deformation and failure process of surrounding rock and to provide a basis for scientific shoring design of transportation roadway and return air roadway in the coal mine to be excavated. Ultimately, design proposal is proved to be applicable through field experiments and research.