20 Nov 2019 18:28pm
  • tunel_vracar 1.jpg
  • tunel_vracar 2.jpg

Vracar Railway Tunnel, Serbia

 

Vracar railway tunnel with two separate tunnel tubes is an integral part of the Belgrade Railway Junction. Mechanized shield method was applied in the construction of this tunnel along with the simultaneous erection of reinforced concrete segments. The construction of such an important structure provided the opportunity for the company to gain the experience in the field of executing tunnel works using tunnel excavation and lining machine (TBM).

 

Employer

Beogradčvor, Belgrade

Tunnel tubes

length

2 x 3,225

m

outer diameter

7.2

m

inner diameter

6.7

m

concrete segment thickness

25.0

cm

maximum surcharge height

40

m

minimum surcharge height

11

m

Major quantities

tunnel excavation

364,500

m3

concrete

86,600

m3

reinforcement

6,920

t

grout mix

18,860

m3

chemical grouting

560

m3