Numerical Simulation Verification of the Application of Inorganic Thermal Insulation Materials to the Surrounding Rock of Roadways

Abstract

Abstract Insulation materials provide a new solution for heat dissipation control in high-temperature mine enclosures. In this paper, ANSYS Fluent was selected to conduct a numerical simulation study on the heat transfer after inorganic insulation materials were laid on the surface of the mine tunnel surrounding rock. The results show that the influence of the tunnel wind flow on the temperature of the surrounding rock is related to the support material laid, and the temperature of the surrounding rock wall after laying inorganic insulation material is about 4°C lower than that of ordinary concrete support. The temperature difference of the surrounding rock wall at the entrance of the tunnel is about 4.6°C, and that of the surrounding rock wall at the exit is about 2.8°C. The comparative analysis verifies that the insulation material positively affects the heat dissipation control of the high-temperature shaft and the surrounding rock of the roadway.