Neubau Hochwasserrückhaltebecken Gonna

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Construction of the Gonna floodwater retention basin, 180 m long and up to 6 m high embankment with internal sealing, reinforced concrete culvert structure on deep foundation Earthworks: stripping/removal and placement of topsoil 20,000 m2, excavation of soil 5,000 m3, install 10,000 m3 of supplied soil, Drilling works: 50 m drilling template for overlapped bored pile wall d=88 cm, 50 m drilling template for overlapped bored pile wall d=120 cm, approx. 70 bored piles d=88 cm, 6 m length, approx. 50 bored piles d=120 cm, 10 m length, 1,000 tieback anchors for anchored facing formwork Pile driving works: 1,500 m2 sheet piling as internal sealing, embedment depth up to 12 m Water management works: creation of a diversion channel, open water management in excavation pits Pressure pipeline works outside water bodies: replace 60 m drinking water pipeline incl. rerouting and venting/de-aeration at the high point; replace 60 m wastewater pressure pipeline incl. rerouting and venting/de-aeration at the high point; Securing works in water bodies: 600 m2 set-pack from hydraulic engineering elements, 1,000 m2 hydraulic engineering element placement Road and path construction works: 1,000 m2…

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