Bratislava, underground connection passage to the building of the Slovak National Council

Renewal of the baroque object on the western terrace

Client

Office of the Slovak National Council, Bratislava

Construction period

SO 02 May 1998 – May 1999
SO 03 July 2000 – October 2000

SO 02 Underground connection passage
SO 03 Connecting the underground connection passage in the Slovak National Council building

Client: Office of the Slovak National Council, Bratislava

Construction technology:
Excavation works in the excavated and bored part of the underground connection passage were executed by NATM method and drilling-blasting works. Primary lining of the underground connection passage was supported by shotcrete, steel mesh reinforcement and TH reinforcement. Waterproofing of the underground connection passage was made from PE tunnel foil. Secondary lining was made from reinforced concrete of VT 100- C 25/30 class, the volume of concrete mixture represented 1 200 m3.

Completed structures:

  • rock excavation and support of the underground connection passage bored part by primary lining with the cross section profile area of 14.4 m2 and 154.6 m length
  • rock excavation and support of the underground connection passage excavated part by primary lining with cross section profile area of 38.0 m2 and 67.0 m length
  • waterproofing of excavated and bored part of the underground connection passage 3 800 m2
  • armouring and concreting works at secondary lining of connection passage bored part in 154.6 m length
  • armouring and concreting works at secondary lining of connection passage excavated part and lift shaft in 74.5 m length