Extension of metro line A Dejvická - Nemocnice Motol
The aim behind extending line A of the Prague metro was to improve the quality of transport services in the northwest sector of Prague.
Dopravní podnik hl. m. Prahy
Metroprojekt Praha a.s.
12/2009 – 06/2014
The aim behind extending line A of the Prague metro was to improve the quality of transport services in the northwest sector of Prague. High-capacity metro transport has reduced the number of bus lines in this area. Moving the terminal station closer to the outskirts of the metropolis has ensured the connection of the largest Prague hospital in Motol and has brought metro line A closer to the Ruzyně airport.
Project in numbers
- 4 new stations Bořislavka, Veleslavín, Petřiny, Nemocnice Motol
- 6,134 m Total length of the line
- 825,5 m Double-track sections
- 2x 4,051 m Single-track sections – TBM mining
- 1,332 m Road sections
Exceptionality of the structure
Mining with TBM-EPB S-609 (Tonda) and S-610 (Adéla) full-face tunnelling machines
Parameters: machine type – earth shield, length including trailing gear – 102 m, weight 680 t, installed power 1200 kW, rotation speed of cutterhead 3 rpm, mining speed Ø 35 mm/min, Ø daily output 15 common metres, one ring (1.5 m) assembled in Ø 35 minutes, total number of rings 5,565 pcs.
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