Analysis of Earth’s Heat Flow in Artificial Ground Freezing

The authors have analyzed relative earth heat infiltration in artificial ground freezing in the context of formation of frozen wall in mine shafts. The artificial ground freezing modeling reveals a considerable dependence of the earth heat infiltration on the thermal properties of ground, process va...

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Bibliographic Details
Published in:Journal of mining science 2020, Vol.56 (1), p.149-158
Main Authors: Semin, M. A., Levin, L. Yu, Pugin, A. V.
Format: Article
Language:English
Subjects:
Brines
Earth
Earth and Environmental Science
Earth Sciences
Excavation
Freezing
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Ground freezing
Heat
Heat flow
Heat transmission
Infiltration
Mine shafts
Mineral Resources
Mining Thermophysics
Process variables
Refrigeration
Saline water
Steady state
Thermal properties
Thermodynamic properties
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Summary:The authors have analyzed relative earth heat infiltration in artificial ground freezing in the context of formation of frozen wall in mine shafts. The artificial ground freezing modeling reveals a considerable dependence of the earth heat infiltration on the thermal properties of ground, process variables of refrigerating plant and time. The relative earth heat infiltration comes to a steady-state value 5–8 months after beginning of freezing. The formula is obtained for estimation of the steady-state value for the relative earth heat infiltration at different temperatures of ground and freezing brine.
ISSN:1062-7391
1573-8736
DOI:10.1134/S106273912001659X