FIELD: underground construction technology. SUBSTANCE: according to method, after joining of tunnel sections, their ventilation is effected by through streams on principle of operational ventilation by means of main ventilation plant with regulation of flow rate in directions with help of partitions with openings, and partitions with windows. Blind workings can be ventilated due to overall mine depression and these workings can be as long as 10 m. Partitions with openings can be installed in all streams, except stream of maximal depression, partitions with windows can be installed in inclined entries and underwater tunnels of ventilation shafts. EFFECT: high efficiency. 4 cl
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