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Characterization of deep ground geothermal field in Jiahe Coal Mine

Authors
Journal
Mining Science and Technology (China)
1674-5264
Publisher
Elsevier
Publication Date
Volume
21
Issue
3
Identifiers
DOI: 10.1016/j.mstc.2011.05.013
Keywords
  • Deep Mine
  • Geothermal Field
  • Heat Damage
  • Function

Abstract

Abstract 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).

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