FIELD: mining and building, particularly frozen rock thawing for deposit development.
SUBSTANCE: method involves removing soil cover from area to be thawed; erecting water-retaining dam; filling the area with water and draining water out of area bounds. Well rows are drilled in the area and spillaway pipe is laid between the wells. One end of spillaway pipe is closed with cap. Another end thereof is provided with gate valve and drain pipe. Water intake pipes are installed in wells and connected to spillaway pipe. The water intake pipes have sections provided with perforated orifices of 0.01-0.02 m diameters. Above water intake pipe sections have lengths of 0.5-1.0 m.
EFFECT: increased efficiency.
2 cl, 1 dwg
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SU1770573A1 |
