Норвегия – Строителни и монтажни работи на хидротехнически съоръжения – Pipeline system Bottle stream - Prequalification

Nesodden Municipality wishes to establish water and sewage for residential and holiday homes in Flaskebekkveien, Vardeveien, Øvreveien, Nordveien, Kavringstrandveien, Strandpromenaden, Sjøstrandkroken and renovation of a water pipeline in Vardebakken with blocking out. The task is to establish approximately 4,230 m of water, wastewater and surface water on existing roads. This involves the excavation of masses for the establishment of water and sewage ditches, as they have not yet been established in the area. The ditches shall mainly be 1.7 m deep, but at some stretches/points it is deeper, down to 4 m. The rock is hard and there are many mountains in the open air, so blasting and pigging are expected in large parts of the area. Controlled drilling will be used in areas with difficult conditions. Parts of the Vardeveien and Flaskebekkveien routes will be carried out with drilling in rock due to challenging terrain conditions. The installation will be carried out as shallow ditches, where the water pipeline is insulated to limit blasting of rock. The surface area of the water pipeline will be approximately 1 m with a depth to the bottom of the rock trenches of approximately 1.7 m. Parts of the stretch for Flaskebekkveien will be carried out with drilling. The manhole group at K20 (start and reception pit) Depth here will be approximately 5.5 m. This blasting must be carried out in several stages. This is the prequalification of the competition.