罗河铁矿井下工程热环境分析

Analysis of the Engineering Thermal Circumstance in Luohe Iron Mine

以勘探线为参考布置竖直方向测点位置,通过检测不同水平围岩原始岩温,利用线性回归法得出罗河铁矿地温梯度为2.405℃/100 m,并采用电功率量热法检测出井下8类岩石的热导率。地温梯度计算结果表明,罗河铁矿二期开采水平原始岩温较高,属于三级热害矿井,计算结果可为该矿深部采矿开拓系统设计提供参考。

According to the exploration lines,the position of measuring points in vertical direction are designed in Luohe iron mining area.The original rock temperature of the surrounding rocks in different levels are detected,the geothermal gradient of Luohe iron mine is 2.405 ℃/100 m by adopting the linear regression method.The thermal conductivity of the eight class rocks in Luohe iron mine is detected by u-sing the electrical calorimeter method.The calculation results of geothermal gradient show that original rock temperature of the mining levels of the phase of Luohe iron mine is high,it belongs to third-level thermal victims mine.The above analysis results of the paper can provide some reference for the develop-ment system design of deep mining of Luohe iron mine.