THERMAL SCIENCE

International Scientific Journal

Thermal Science - Online First

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Analysis of moisture and temperature fields coupling process in freezing shaft

ABSTRACT
The temperature change of frozen soil wall and the evolution characteristics of the specific heat capacity are analyzed. The frozen soil cylinders form surrounding freezing pipes at initial freezing stage, and the temperature field of frozen soil presents a nonlinear decrease. With the increase of freezing time, the radius of the frozen soil cylinder increases and a frozen soil wall is enclosed. After freezing 30 days, the thickness of the frozen soil wall is obtained as 1.7m. After freezing 250 days, the thickness of frozen soil wall increases to about 11.0m.
KEYWORDS
PAPER SUBMITTED: 2018-05-19
PAPER REVISED: 2018-06-28
PAPER ACCEPTED: 2018-08-20
PUBLISHED ONLINE: 2019-04-14
DOI REFERENCE: https://doi.org/10.2298/TSCI180519130Y
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