摘要
Research into the characteristics of geothermal fields is important for the control of heat damage in mines. Based on measured geothermal data of boreholes from 200 m to 1200 m in a Jiahe Coal Mine, we demonstrate non-linear but increasing relations of both geo-temperatures and geothermal gradients with increases depth. Numerically, we fitted the relationship between geo-temperatures and depth, a first-order exponential decay curve, formulated as: T(h) = 4.975 + 23.08 exp(h/1736.1).
Research into the characteristics of geothermal fields is important for the control of heat damage in mines. Based on measured geothermal data of boreholes from -200 m to -1200 m in a Jiahe Coal Mine, we demonstrate non-linear but increasing relations of both geo-temperatures and geothermal gradients with increases depth. Numerically, we fitted the relationship between geo-temperatures and depth, a first-order exponential decay curve, formulated as： T（h） = -4.975 ＋ 23.08 × exp（-h/1736.1 ）.
基金
Financial support for this project,provided by the National Basic Research Program of China (No.2006CB202200)
the Key Project of National Natural Science Foundation of China
the Program for Changjiang Scholars,Innovative Research Team in University of China (No.IRT0656)
the Fundamental Research Funds for the Central Universities (No.2010QL04)
