HOBAS® XXL Tank DN 3600 Protects Dąbrowa Górnicza Against Floods
Nov 19, 2014
In the view of environmental influences and the expansion of urban areas, the issue of flood prevention becomes a key task for urban infrastructure. HOBAS Tanks have become a widely accepted remedy for this problem – such as a 2,410 m³ large retention system DN 3600 that has been installed in Poland in 2014.
To prevent floods, the investor opted for a complete rehabilitation of the sewage and stormwater system. In the event of heavy rainfalls, the excess water shall be discharged into a stormwater retention tank and then gradually pumped out. The very limited space on site ruled out the alternative option of a second sewer.
Thanks to the HOBAS GRP Pipes’ small outside diameter in relation to the inside diameter, the installation area could be reduced considerably – a factor which, given the location of the building site at the crossroad, proved very beneficial. A ventilation system with PVC pipes was laminated to the GRP Pipes by the HOBAS Experts.
The described storage system is part of a new stormwater drainage system which is currently being built from HOBAS Pipes DN 400-1400, PN 1, SN 10000. The installation of the sewers commenced in February 2014 and will continue until the end of 2014. HOBAS Poland produced the required GRP pipes, fittings, and shafts. Due to the large size of the fittings, the deliveries took place at night.
At a Glance
|Year of installation||2014|
|Installation time||Tank: 1 month, Sewer system: 10 months|
|Total length of pipe||1.7 km|
|Capacity||2,410 m³ (4 x 62 m)|
|Diameter||Tank: DN 3600, Sewer system: DN 400-1400|
|Pressure class||PN 1|
|Stiffness class||SN 10000|
|Application||Retention system, sewer system|
|Installation method||Open trench|
|Client||City of Dąbrowa Górnicza|
|Advantages||Space-saving installation in the city center, corrosion resistance, tailor-made fittings, on-time delivery, fast installation|
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