摘要
为研究淮北煤田地温场特征及形成机理,分析了临涣矿区不同构造单元井田的地温场特征。结果表明,研究区的地温梯度介于1.36-3.77℃/hm之间,各井田的平均地温梯度介于2.05-2.89℃/hm之间。研究区内以正常地温为背景,高地温梯度值主要出现在背斜和断裂密集发育区域,高温异常也主要出现在褶曲隆起和深大断裂密集发育区。分析表明构造形态特征和断裂发育情况是研究区地温场特征的控制因素。
In order to study the distribution characteristics and formation mechanism of geothermal field in Huaibei coalfield,the features of earth temperature field of the mine field with different structural units in Linhuan mine area were analyzed.The results show that,the geothermal gradient is within 1.36 - 3.77℃ / hm and the average geothermal gradient of different mine fields is within 2.05 - 2.89℃ / hm; the ground temperature is normal in target area,high geothermal gradient occurs at upper band and intensive development areas of fracture,and abnormal high temperature occurs at fold uplift and intensive development areas of deep fracture; the controlling factors for geothermal field distribution characteristics lies in the structural morphology and fault development condition.
出处
《煤炭工程》
北大核心
2015年第1期88-91,共4页
Coal Engineering
基金
国家自然科学基金(41272278)
高等学校博士学科点专项科研基金(20123415110002)
关键词
地温场特征
地温梯度
构造形态
控制因素
distribution characteristics of geothermal field
geothermal gradient
structural morphology
controlling factor
