This pedestrian tunnel is one of the key elements of the public transport system in Warsaw's district of Śródmieście as it constitutes a connection among the metro line, the tram platforms, and the bus terminus.
The pedestrian tunnel under Solidarity Avenue in Warsaw
Investor: Warsaw Metro
Time of project execution: 2000-2001
Additional technical data:
- The cover and cut method
- Diggings: 7950 m3
- Length: 65.4 m
- Height: 26.7 m
- Maximum width: 6.4 m
- Basic concrete structures: 1395 m3
Poland, mazowieckie Province,
Built in just 8 months, the pedestrian tunnel is an important element of Warsaw's public transport infrastructure as it constitutes a connection among the metro line, the tram platforms, and the bus terminus. Because the facility was to be located in the very centre of the capital, the whole project was divided into stages.
The primary criterion was to minimise disruption to road and tram traffic. Consequently, the foundation works were coordinated with traffic organisation in order to prevent the latter's total stoppage. With respect to the technical aspects, it was very important to position the tunnel just 80 cm above the floor slabs of the other facilities, e.g. the eastern metro tunnel. The structure of the pedestrian tunnel comprises a slab-column frame system, an 80 cm ceiling supported on a piled wall and internal columns. The main weight of the facility rests on 13 columns with the diameter of 1800 m, reaching the thickness of up to 37 m, and a wall consisting of 211 piles with the diameter of 620 mm, constituting the outline of the structure.
Carrying out construction works without complete traffic closure in the vicinity of the construction site.
Performing specialist piling works.
to geological and exploratory, geological and reconnaissance, and piezometric drilling operations as well as the preparation of technical boreholes for the purpose of rock mass freezing during shaft sinking operations.
of mine shafts
The sinking of shafts based on conventional and special methods; Shaft reconstruction and decommissioning; shaft sinking using a unique shaft sinking technology.
Construction of horizontal
Drivage of narrow or chamber workings, rebuilding or reconstruction of headings, underground assembly works, underground drilling operations.
Comprehensive industrial construction engineering, construction and modernisation of industrial pipelines, construction of public buildings.