Heat hazard is major challenge for the safe and efficient exploitation of deep resources. Understanding the heat transfer behaviors in roadway is the premise of temperature prediction and ventilation design. A fully coupled model incorporated with a moving mesh method was developed, which considers the convective heat transfer between surrounding rock and airflow, unsteady-state heat transfer in rock, and non-isothermal flow in roadway. The characteristics of thermal performance and its evolution law in an excavating roadway were obtained. The numerical model was validated against previous experimental data with a deviation of less than 3%. Analysis of the airflow and temperature field revealed the characteristic of convection heat transfer in the wall and local heat accumulation in roadway. The air temperature in roadway is associated with the airflow characteristics, and a local high temperature zone is presented in the vortex zone. By comparing the heat flux of the surrounding rock and excavation condition, it is found that the heat released from the working face poses a crucial effect on the airflow temperature in roadway. The present study provided a robust theoretical basis for improving cooling efficiency and thermal comfort in roadway construction.

热危害是安全有效地开采深层资源的主要挑战。了解巷道中的传热行为是温度预测和通风设计的前提。建立了结合移动网格方法的全耦合模型，该模型考虑了围岩与气流之间的对流传热，岩石中的非稳态传热以及巷道中的非等温流。得出了开挖巷道的热力性能特征及其演化规律。数值模型已针对先前的实验数据进行了验证，偏差小于3％。对气流和温度场的分析揭示了对流壁内传热和巷道局部热量积聚的特征。巷道中的空气温度与气流特征相关，并且在涡流区中存在局部高温区。通过比较围岩的热通量和开挖条件，发现从工作面释放的热量对巷道中的气流温度具有至关重要的影响。本研究为改善巷道施工中的冷却效率和热舒适性提供了坚实的理论基础。