Design and construction of D4 highway, section Jarovce – Rača and R7 expressway, section Bratislava Prievoz – Holice
Ministerstvo dopravy a výstavby Slovenskej Republiky
D4R7 Construction s.r.o.
February 2019 – May 2020
Description of the objects:
- BO520/SO521 – parallel water pipeline made of ductile cast iron DN1400, PN16 in the length of 816m, with 3 revision and 2 shutter shafts; pipeline is installed in protective reinforced concrete pipe DN2000 in the lenght of 74 m and reinforced concrete collector in the total length of 39 m.
- BO527 – water pipeline made of ductile cast iron DN800, PN16 in the length of 200m; building object starts with shutter shaft, water pipeline DN800 is diverted from existed water pipeline ROL1 and ROL2. Routing of the pipeline is located under the state route I/2 and finished in the reinforced concrete collector.
Technology of the construction:
Pipeline is located in the open trenches with vertical and sloap walls expect in crossing with route I/2 (trenchless technology with extruding of the steel protective pipe) Building shafts are ensured by the sheet piles.