Optimizing Stope Structure in Fractured Orebody of a Vanadium mine after Grout by Numerical Simulation

Rock masses of a vanadium mine of China are broken which need much reinforcement and support before mining. Grout technology was thus selected to pre-reinforce the fractured ore block prior to mining. Through comparative analysis, chemical resin was employed as grouting material and in situ experiments were carried out. To optimize stope structure, orthogonal design was adopted and simulation softwares were employed. The results show that, analyzed from the numerical simulation parameters such as roof subsidence and plastic zones distribution of the pillars, mining safety could be greatly ensured.