There was dug a pit under the car bridge in Binagadi district of Baku, in the 528th km of Heybet-Bilajari highway. As it is shown in the following pictures, large diameter pipes were used for strengthening the pit.
Baku metropolitan gave the below information on that:
“As known, new “Avtovagzal” station is building next to the central bus station of Baku. Since tunnel will pass beneath the railway line, reinforcement work is important to be carried out under the car bridge. It is planned to cement the pit, as well”