非稳态导热理论在矿井原岩温度测定中的应用

Virgin rock temperature measurement depending on unstable heat conduction

矿井的原始地温是矿井热害治理的基础数据，是进行矿井热源分析、井下风温预测以及制定矿井降温措施的重要依据．井巷围岩温度场是非稳态温度场，为测得生产矿井的原始地温往往需要打30～40m的深孔，其测定时间长、成本高、难度大．根据非稳态导热理论，在采掘工作面打一定深度的浅钻孔，通过测算原岩温度随着时间的变化情况，可以获得该地点的原始地温，并对浅钻孔测温方法的适用条件进行了探讨，并对浅孔的测温过程以及在实际测温中应注意的问题进行了分析．

Virgin rock temperature is the basic data used to analyze the heat source, forecast the air temperature in mines and establish measures to cool down. The temperature field of mine rock was unstable. In order to get stable temperatures, we usually need to drill a hole about 30 to 40 meters deep with much time, high costs and also many difficulties. Depending on the unstable heat theory, the original temperature of the place was obtained through measuring and calulating the temperature in shallow holes as time went by. Finally, the condition for using the method of measurement, the course and the advertent problems during the measurement were discussed.