张庄铁矿地温监测技术及地温分布规律研究
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摘要
地温场是矿井热环境的主要影响因素。采用热电偶地温监测技术,从垂直和水平两个方向进行地温监测,得到该矿垂直平均地温梯度为2.8℃/100 m,-480 m水平以上地温梯度为0.98℃/100 m,-480 m水平以下,地温梯度为5.08℃/100 m;水平地温梯度由南向北分为3个区域,分别为1.5,0.1和1.8℃/100 m,温度由南向北逐渐增高;调热圈厚度为20 m。利用VENTSIM软件建立了地温分布模型,得出该矿地温分布规律,为通风解算奠定了基础。
Geothermal field is the main factors which influences the mine thermal environment.Vertical direction and horizontal direction ground temperature are monitored by the thermocouple temperature monitoring technology,vertical direction geothermal gradient is 2. 8 ℃ /100 m,geothermal gradient is small above 480 m level,and the geothermal gradient is 0. 98 ℃ /100 m,while below 480 m level,the geothermal gradient is 5. 08 ℃ /100 m. The horizontal direction geothermal gradient is divided into three regions from south to north of the mining area,they are 1. 5,0. 1 and 1. 8 ℃ /100 m respectively and the temperature increased gradually from the south to the north,the thickness of the adjustable hot laps is 20 m. The ground temperature distribution model is established based on VENTSIM software,so,it can lay the foundation for ventilation calculating.
Geothermal field is the main factors which influences the mine thermal environment.Vertical direction and horizontal direction ground temperature are monitored by the thermocouple temperature monitoring technology,vertical direction geothermal gradient is 2. 8 ℃ /100 m,geothermal gradient is small above 480 m level,and the geothermal gradient is 0. 98 ℃ /100 m,while below 480 m level,the geothermal gradient is 5. 08 ℃ /100 m. The horizontal direction geothermal gradient is divided into three regions from south to north of the mining area,they are 1. 5,0. 1 and 1. 8 ℃ /100 m respectively and the temperature increased gradually from the south to the north,the thickness of the adjustable hot laps is 20 m. The ground temperature distribution model is established based on VENTSIM software,so,it can lay the foundation for ventilation calculating.
引文
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[10]江灏,王钟睿,柳艳香,等.我国地震、地温、降水之间的动态统计特征[J].地球物理学报,2002,45(S):144-150.
[2]吴超.矿井通风与空气调节[M].长沙:中南大学出版社,2008.
[3]胡菊艳,郭鸿.地温梯度判定地热异常的探讨[J].河南科技,2014(3):73-74.
[4]卢玲玲,秦勇,郭晨.黔西补作勘查区现代地温场及煤层受热温度分析[J].中国煤炭地质,2013,25(10):12-17.
[5]张连强.顺和西煤矿区地温特征及其影响因素分析[J].中国煤炭地质,2012,24(7):29-33.
[6]张帅,田道春,刘文中.北煤矿地温分布规律及其影响因素分析[J].安徽理工大学学报:自然科学版,2012,32(1):35-38.
[7]胡绍龙.刘庄井田地温分布规律及其因素分析[J].矿业安全与环保,2004,31(5):26-29.
[8]柳明明.Ventsim三维通风仿真系统在金属矿山的应用[J].金属矿山,2010(10):120-122.
[9]冯伟,朱方平,刘全义.三维仿真软件Ventsim在矿井热害控制中的应用[J].西安科技大学学报,2011,31(6):776-779.
[10]江灏,王钟睿,柳艳香,等.我国地震、地温、降水之间的动态统计特征[J].地球物理学报,2002,45(S):144-150.
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