Construction of platform tunnels 4 x 20 meters in length with variable diameter (greater than 10 meters).
Two tunnels under the Corvinus University, two tunnels under the Danube (the second one with congelation method).
- construction of primary shot concrete shell
- geometric leveling with shot concrete
Fővám Square 2008-2010.- General Contractor: Hídépítő Zrt.
Ventilation tunnel 70 meters long, 6.5 meters in diameter, inclination down with "turn".
- construction of primary shot concrete shell
- waterproofing with sprinkled Masterseal non-conductor membrane
- secondary shell with shot concrete with steel fibre
- creation of internal fireproof layer by means of shot concrete with polypropylene fiber
Shield starting chamber is about 10 meters long, 6.5 meters in diameter.
- primary shot concrete shell construction
Ventilation connection (with unique geometry):
- primary shot concrete shell construction
- internal monolithic shell construction
Móricz Zsigmond Körtér, from 2008 to 2009.- General contractor: Strabag Zrt.
Constructing ventilation connection tunnel and vertical shaft, length: 15 + 8 meters (diameter 6,5 meters) by using safety platform and vertical material handling at sections; handling vertical and horizontal interfering tunnels.
- construction of primary shot concrete shell
- waterproofing with sprinkled non-conductor membrane
- secondary shell construction with steel fibre and polypropylene fibre shot concrete
- construction of monolithic framework underlying the line tunnel junctions
Suction tunnel 100 meters long, 10 meters in diameter.
- primary shot concrete shell construction
Excavation and related workflows from the gap wall-bounded box structure of Kelenföldi Station.
Kelenföldi Station 2008-2009.- General Contractor: Hídépítő Zrt.
Shield starting tunnels and ventilation chamber: 50 meter long, 6.5 meter in diameter.
- primary shot concrete shell construction
- inner shell, with rectangular concrete surface intersection
Népszínház Street - General Contractor: BAMCO Kkt.
Shot concrete shell construction.
Slopes; retaining walls; exterior and interior building surfaces reinforcement with shot concrete (steel mesh).
Fővám square 2008-2010 - General Contractor: Hídépítő Zrt.
Heat removal freezing with liquid nitrogen.