矿山深部开采地温测定及高温热环境分析  

Ground temperature measurement and high-temperature thermal environment analysis for deep mining in mines

作　　者：魏诚 Wei Cheng(Hebei Zhongjin Gold Co.,Ltd.;Hebei Co.,Ltd.of China National Gold Group Co.,Ltd.)

机构地区：[1]河北中金黄金有限公司 [2]中国黄金集团河北有限公司

出　　处：《黄金》2023年第6期30-34,共5页Gold

摘　　要：以矿山初显的高温热害问题为研究对象,开展了矿井深部开采区域原始岩温与热环境现场测试与分析。研究结果表明:矿山中深部开采-580 m区域岩层、-650 m和-730 m地层原始岩温分别为31℃、32.5℃和34.7℃,地层平均地温梯度2.45℃/100 m。采掘工作面主要热源为围岩散热和机电设备散热,分别占46%和24%;提出了以总巷道长度绝对散热量指标和单位巷道长度相对散热量指标衡量井下热源分布与热害程度新思路。研究结果可以为类似矿井高温热害评估及后续降温工程措施实施提供参考。A study was conducted on the initial heat hazard in mines,focusing on the testing and analysis of the original rock temperature and thermal environment in deep mining areas.The results showed that the original rock temperatures in the-580 m,-650 m,and-730 m layers were 31℃,32.5℃,and 34.7℃respectively,with an average geothermal gradient of 2.45℃/100 m in strata.The main heat sources in the working face were the surrounding rocks and electromechanical equipment,accounting for 46%and 24%respectively.A new idea was proposed to measure the distribution of underground heat sources and the degree of heat hazard using absolute and relative heat dissipation indexes based on the total and unit lengths of ventilation tunnels.This study can provide a reference for assessing heat hazards in similar mines and implementing subsequent cooling engineering measures.

关 键 词：深部开采 高温热害 原始岩温 采掘工作面 地温测定 焓差 

分 类 号：TD727[矿业工程—矿井通风与安全]