荫营煤矿自燃矸石山温度场分布及深部温度拟合  

Temperature field distribution and deep temperature fitting of spontaneous combustion gangue dump in Yinying Coal Mine

作　　者：杨娜 张永波[1] 牛金荣 YANG Na;ZHANG Yongbo;NIU Jinrong(College of Water Resources Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Yangquan Yinying Coal Mine,Yangquan 045000,China)

机构地区：[1]太原理工大学水利科学与工程学院,山西太原030024 [2]阳泉荫营煤矿,山西阳泉045000

出　　处：《矿业安全与环保》2021年第4期23-27,32,共6页Mining Safety & Environmental Protection

基　　金：国家重点研发计划项目(2018YFC0406403)。

摘　　要：为明确自燃矸石山内部温度分布特征,建立了温度自动监测系统,利用热电偶实时测试阳泉市荫营煤矿矸石山不同深度的温度,借助统计学方法分析了矸石山内部水平和竖直方向温度分布规律,采用最小二乘法建立了浅深层温度间的拟合模型,并进行拟合优度检验和显著性分析。结果表明,矸石山在水平方向上可分为高温区、中温区和低温区3个分区,高温区主要分布在靠近边坡的一侧,该区域测点温度随着深度的增加先升高后降低,在深度6.0 m处温度达到峰值;平台最高温度667℃,位于地表以下6.0 m水平线与斜坡以下6.0 m平行线的交点处,说明距表面6.0 m处自燃倾向性最高;一元二次模型拟合效果更佳,回归效果显著,可作为浅层温度估算深层温度的经验回归公式。In order to clarify the internal temperature distribution characteristics of spontaneous combustion gangue dump,an automatic temperature monitoring system was established.The thermocouple was used to measure the temperature at different depths of Yinying Coal Mine in Yangquan City in real time.The horizontal and vertical temperature distribution laws inside the gangue dump were analyzed by means of statistical methods.The least square method was used to establish the fitting model between shallow and deep layers,and the goodness of fit test and significance analysis were carried out.The results show that the gangue dump can be divided into three zones in horizontal direction:high temperature zone,medium temperature zone and low temperature zone.The high temperature zone is mainly distributed on the side near the slope,where the temperature at the measuring point increases first and then decreases with the increase of depth,and reaches the peak temperature at a depth of 6.0 m;the maximum temperature of the platform is 667℃,located at the intersection of the horizontal line 6.0 m below the surface and the parallel line 6.0 m below the slope,indicating that the highest spontaneous combustion tendency is 6.0 m from the surface;the unary quadratic model has better fitting effect and significant regression effect,which can be used as an empirical regression formula for using shallow temperature to estimate deep temperature.

关 键 词：煤矸石山 自燃 温度场分布 温度分区 深层温度 拟合模型 显著性分析 

分 类 号：TD75[矿业工程—矿井通风与安全]