【摘要】 本文应用数值法和电子计算机求解了各种复杂条件下深井巷道围岩与空气的热交换问题。求算了巷道风温恒定时岩体壁面温度、岩体与空气的非稳态热交换系数和围岩调热圈厚度。另外,还求算了巷道风温周期变化和巷道风温随时间衰减时,围岩与风流的非稳态热交换系数。所得出的计算图表和校正公式可用于复杂条件下深井巷道围岩散热量和空气温度的计算。更多还原

【Abstract】 In this paper a numerical method and a computer are used to study heat transfer between rock and airflow in deep tunnels under different complicated conditions. The temperature of tunnel wall, coefficient of unsteady heat exchange and thickness of heat-adjusting layer at constant air temperature in a tunnel are calculated. In addition, coefficient of unsteady heat exchange between rock and airflow is computed, when the temperature of airflow in the tunnel changes periodically, and when the temperature decreases with time. The graph and correction formula obtained can be used for calculating heat released by rock and air temperature in a deep tunnel under complicated conditions.更多还原