FIELD: construction engineering. SUBSTANCE: device relates to underground construction activities at large depth with application of artificial freezing. Device for zonal freezing of ground has body of freezing column. Located inside body is central pipe which is connected with perforated distributing pipe unions. Also provided is fairing which is mounted on base around feeding pipe. It is mounted with clearance relative to column body. Located below fairing is sealing unit. Connection of feeding pipe with distributing pipe unions is made at base level. Lower part of fairing is embraced by distributing pipe unions. Upper part of fairing is provided with bafflers. Application of embodiment of device allows for reducing length of distributing pipe unions together with reduction of hydraulic resistance and cutting input of liquid nitrogen. EFFECT: higher efficiency. 8 cl, 6 dwg
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