Reservoir at Carl Blochs Gade in Aarhus Construction of Square-Shaped Equalization Basin in Aarhus

Reservoir at Carl Blochs Gade in Aarhus Construction of square-shaped equalization basin in Aarhus

In the period between 2008 and 2011, Aarsleff con- minimise the noise and vibration nuisance to the structed an equalisation basin in Aarhus with a nearby residential areas. To protect the base from capacity of approx. 16,000 cubic metres. The basin swelling, we installed 350 20-metre-long vertical was constructed as a square-shaped structure, GEWI anchors that keep the base deck in place. and Aarsleff’s work comprised concrete work and sheet piling, installation of anchors, excavation Alternative solution and installation of precast concrete units. During the project in Carl Blochs Gade, we chose an alternative solution for drilled horizontal Construction and piling disciplines anchors as the sand layer in which the anchors The 63-metre-long, 30-metre-deep and 9-metre- were to be installed, was very wet. The solution deep reservoir was constructed in a sheet piled was therefore to carry out hydraulic waling until construction pit and anchored with temporary we cast a bearing reinforced levelling layer of anchors. The temporary anchors were only to concrete. function during the construction phase, because sheet piles, concrete slab and deck subsequent- Additional work ly keep the walls in place. We cast the base, the The project also comprised design of construction walls and the deck insitu, and the deck is support- and hydraulics as well as instrumentation within ed by columns and beam lamina. electricity, pumps and programming. Aarsleff’s subsidiary Wicotec carried out pumps and pipe A minimum of noise and vibration nuisance to installations and Wicotec’s subsidiary Danklima residents was responsible for the ventilation work. The 2,500 square metres of sheet piles were pressed in place by means of a Z Crush Piler to Per Aarsleff A/S Main office Lokesvej 15 DK-8230 Aabyhoej Denmark

Tel +45 8744 2222 Fax +45 8744 2249

Copenhagen office Industriholmen 2 DK-2650 Hvidovre Denmark

Tel +45 3679 3333 Fax +45 3679 3300

Data • 3 10" 45 kW discharging Contractor Contact • 2,500 m²/182 rm of sheet piles pumps Aarsleff, Construction Construction and Piling • 150 strand anchors • 3 90 kW propeller lifting and Piling Estimation & Tender • 180 rm of hydraulic waling pumps [email protected] • 350 vertical GEWI anchors • Control board Cooperation partners Tel +45 8744 2222 • 23,500 m³ of excavation • Electrical work Wicotec A/S • 2,400 m³ of concrete • Controlling and program- Viby-El A/S • 190 tons of reinforcement ming HydroSystems A/S • 1.650 m² of filigree deck • Plumbing work • 64 precast concrete lamina • Reinstatement and garden- Construction period • 59 precast concrete columns ing. September 2008-June 2011 • 24 m DN2000 HDPE waste pipeline Client Contract price • 25 m DN1400 concrete feed Aarhus Vand A/S DKK 56 million line • 20 m DN600 HDPE discharge Type of contract pipeline Partnering ANLÆG-164UK-rev.3