Construction D2 Lamačská cesta – Staré Grunty, Section Tunnel Sitina

Client

Národná diaľničná spoločnosť,a.s. Bratislava

Superior Contractor

TAISEI Corporation

Construction period

October 2003 – December 2005

Objects description:

  • T 401 north portal for tunnel driving
  • T 403 driven tunnel – west tunnel tube (secondary lining)
  • T 404 driven tunnel – east tunnel tube (secondary lining)
  • T 405 escape corridors (secondary lining)
  • T 406 north portal object
  • T 407 south portal object
  • T 408 cut and cover tunnel tubes in SAV area
  • T 409 cut and cover tunnel tubes in south portal
  • T 411 tunnel drainage
  • T 415 collector at north portal
  • T 416 collector at south portal

Executed works:

  • cut and cover and stabilization of the portal cuts
  • waterproofing layers
  • secondary lining – west tunnel tube, block length 10 m.
  • conceting of the lower arch 1 800 m3
  • conceting of the upper arch – driven part 120 blocks
  • concreting of the upper arch – cut and cover part 24 blocks
  • secondary lining – east tunnel tube, block length 10 m
  • conceting of the lower arch, the consumption of 3 400 m3 of concrete
  • conceting of the upper arch – driven part 117 blocks
  • concreting of the upper arch – cut and cover part 27 block
  • amount of cast concrete: 17 700 m3 of cast concrete – driven part
  • amount of cast concrete: 5 950 m3 of cast concrete – cut and cover part
  • concreting of the escape routes: 570 m3
  • backfilling of cut and cover parts
  • drainage
  • excavation, waterproofing, reinforcement and concreting of the south and west portal object
  • roadway
  • pavements
  • cable routes
  • construction of collectors