岩温对曹家洼金矿深部开采热环境的影响

Influence of rock temperature on thermal environment of deep mining of Caojiawa Gold Mine

曹家洼金矿小尹格庄矿段已进入深部开采,岩温是影响采场热环境的主要热源;根据热传导理论分析,采用浅孔测量岩温的方法合理可行,通过测量得出了曹家洼金矿岩温随深度变化的规律;在此基础上,计算分析了岩温对井下风流温度升高的作用,认为该矿深部开采存在一定程度的热害,热环境有进一步恶化的趋势,需加强通风降温措施,切实改善井下作业环境。

The Xiaoyingezhuang section of Caojiawa Gold Mine has entered its deep mining phase. The rock temperature is the key factor that influences the thermal environment. According to the analysis of thermal conduction theory ,the shallow hole rock temperature measurement method was considered to be feasible. The temperature variation regularity with depth was Obtained by measurement. The temperature rise of mine airflow influenced by rock temperature was calculated and analyzed. The results show that there is a degree of thermal hazard in the goldmine and the thermal environment may deteriorate further. The ventilation must be enhanced to cool the temperature and to improve the working environment.