Safety in the construction of subways in a closed way (1973)

Three young people come to the personnel department.

Graduates of vocational school came in the direction to get a job.

Conversation of graduates of vocational school from the beginning.

HR department (synchronously).

Together with the safety engineer, the guys go to inspect the objects.

Safety classes (synchronously).

Helmets, overalls, glasses, respirators.

The guys get acquainted with the head of the site and go with him to the site.

Having received and put on overalls and helmets, the guys go underground.

Drilling and blasting method of work.

Drilling.

The explosives get explosive materials.

One of the detonators gives a warning signal about the start of blasting.

A post at the entrance to the danger zone.

Cleaning the hole.

Laying explosive material in the hole.

Explosive machine.

The bomber gives a second signal.

Explosion.

Sinkers strengthen the face.

Escalator tunnel.

Shield penetration.

The breed is on the conveyor.

Assembly of tunnel lining rings.

Disabling the starting devices in case of an emergency.