Car Tunnel "Prague Radial Road"
PRAGUE RADIAL ROAD - BRNO
INVESTOR:
Brněnské komunikace a.s. by deputy of the Brno City Office
SUPPLIER:
Higher Supplier: Dopravní stavby a mosty Olomouc
Tunnels: Subterra a.s.
Tunnels: Subterra a.s.
DESIGNER:
Amberg Engineering Brno a.s.
(Documentation for building approval, implementation project, project for effective implementation, author supervision, measurement)
(Documentation for building approval, implementation project, project for effective implementation, author supervision, measurement)
Construction Duration:
Design: 1995 - 1997
Implementation: 1995 - 1998
Implementation: 1995 - 1998
INVESTMENT COSTS:
860 millions CZK
TECHNICAL DATA:
The tunnel is part of the external road circuit in Brno. The tunnel of the highway type has to tubes of 510.5 meters (302 meter driven with NRTM, 198 meter excavated segment) and 479.2 meters (292 meters driven with NRTM, 175 meters excavated), respectively. The driving was done by a segmented tunnel work with the division of the heading into the calotte with a surface area of approximately 45 square meters and the floor with a surface area of approximately 50 square meters. The primary lining was performed as a support construction, the secondary lining as a face-lining. The rock pillar between the tunnels has a thickness of 4.5 to 9.0 meters.