FIELD: mining industry; applicable in formation of ventilation systems and regulation of mine heat conditions in permafrost zones. SUBSTANCE: method is characterized by the fact that heat-exchange and connecting workings and ventilation channel are located and constructed in internal dump of opencast mining with subsequent filling of overburden rock onto installed support. Channel is made from reinforced-concrete rings which are installed as filling of dump advances. EFFECT: excluded loss of mineral in safety pillars round heat-exchange workings, comparatively low labor input in construction of support of ventilation system workings. 2 dwg
