FIELD: construction. SUBSTANCE: method for cold accumulation in ground includes successive active and passive freezing of ground. Two-funnel coaxial columns are set in ground. Freezing and supplying tubes of columns are connected with header and distributor, respectively. Connected for forced circulation of coolant is header to air heater with fan, and pump forcing coolant from air heater to distributor. The whole liquid freezing system is filled with coolant. After intensive accumulation of required cold, supplying tubes are withdrawn from two-funnel coaxial columns, tubes of same diameter are added to freezing tubes for natural coolant circulation, and single-tube columns are filled with coolant and tightly closed with covers. EFFECT: higher efficiency.
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