Client
Národná diaľničná spoločnosť,a.s. Bratislava
Superior Contractor
“IS – Marti Contractors” Consortium
Construction period
April 2006 – December 2009
Objects description:
- east portal section
- west portal section
- right tunnel tube
- left tunnel tube
- escape galleries
- roadway and pavements in tunnel
- waste waters discharge
- drainage waters discharge
Construction technology:
Tunnel was driven by NATM – (New Austrian Tunnelling Method) – by using drilling and blasting works.
Executed works:
- excavation and support of portal cuts
- driving of the pillar galleries, profile 51,23 m2, length 180 m
- concreting of pillars
- excavation of tunnel tubes, the profile 80,2 m2
- length of LT (left tube) 943,07 m
- length of RT (right tube) 929,03 m
- amount of shotcrete 19 000 m3
- amount of muck 175 730 m3
- period of driving 18 months 10/2006 – 03/2008 (including driving and concreting of the pillar galleries)
- excavation of escape galleries, length 64,2 m, profile 30,41 m2
- secondary lining
- LT: length of driving part 943,07 m
- LT: length of cut and cover part 56,53 m
- RT: length of driving part 929,03 m
- RT: length of cut and cover part 63,78 m
- block length: 10 m
- amount of concrete: 28,300 m3 – driving part
- amount of concrete: 2 600 m3 – cut and cover part
- the block length: 10 m
- concreting period: 11 months (11/2007 – 09/2008)
- drainage
- roadway
- pavements
- cable routes