FEATURES OF FROZEN WALL FORMATION AFTER COOLING AGENT DELIVERY TERMINATION IN FREEZING PIPES

Low-temperature methods of watercut rock freezing enjoy wide application in our days. Efficiency of these methods depends on the rate and reliability of frozen wall formation. With an increase in amount of work connected with generation of frozen walls in construction of tunnels and other structures in watered rocks, it is required to intensify the process of freezing, which is feasible considering ability of frozen wall to thicken naturally after freezing termination. The processof frozen wall growth after cooling agent delivery termination in freezing pipes is analyzed. Based on physical simulation, a mathematical calculation procedure is developed for a cylinder radius and thickness of an ice wall versus time. As a result, the range of the frozen wall enlargement depending on freezing temperature is found. The procedure is of use to intensify low-temperature formation of frozen walls at the cooling agent temperature not higher than –40 °С.

For citation: Shuplik M. N., Vakulenko I. S. Features of frozen wall formation after cooling agent delivery termination in freezing pipes. Gornyy informatsionno-analiticheskiy byulleten'. 2019;5:44-50. [In Russ]. DOI: 10.25018/0236-1493-2019-05-0-44-50.

Keywords

Frozen wall, artificial soil freezing, freezing pipe, soil frost line, mathematical model, numerical modeling, non-brined freezing methods.

Issue number: 5
Year: 2019
ISBN: 0236-1493
UDK: 624.1
DOI: 10.25018/0236-1493-2019-05-0-44-50
Authors: Shuplik M. N., Vakulenko I. S.

About authors: M.N. Shuplik (1), Doctor of Technical Sciences, Professor, I.S. Vakulenko (1), Graduate Student, e-mail: isvakulenko92@gmail.com, 1) Mining Institute, National University of Science and Technology «MISiS», 119049, Moscow, Russia. Corresponding author: I.S. Vakulenko, e-mail: isvakulenko92@gmail.com.

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