R.O. Kachaev A.I. Levkovsky

When the subway tunnels function, there is a need to carry out ventilation workings that ensure the circulation of fresh air at all stages of operation of the underground structure.

№3 (133) 2017

Key words: underground construction, mine workings, shield penetration, ventilation failure, soil freezing, carcass-anchorage timbering

Mining Industry Journal №3 (133) 2017, p.105

You have no rights to post comments