Tenders Are Invited For Construction Work – Reinforcement Of Genilac Pipes – Sector P47

Construction Work – Reinforcement Of Genilac Pipes – Sector P47. The Genilac® Project Of Services Industriels De Genève (Sig) Aims To Create A Hydrothermal Network. The Fluid Transported Is Treated Drinking Water, Under Pressure, With A Temperature Varying Between 1 And 30°C. In The Sector Called “P47”, Between The End Of The Ofrou Chamber And The P47 Roundabout, An Antenna Of This Network Is Made Up Of Two Parallel Pipes (1 Outward Arm, 1 Return Arm) Of Large Diameter (Internal Diameters 700 Mm). These Pipes Are Made Of A Steel Tube Called A Sheet Metal Core, Covered At The Factory With A Layer Of Reinforced Concrete On The Upper Surface, And A Thin Layer Of Unreinforced Concrete On The Lower Surface. The Tubes Were Joined Together On Site By Welding. They Were Placed In An Open Excavation In A Highly Constrained Site. In Order To Reinforce These Pipes, Sig Wishes To Carry Out A Structuring Lining Capable Of Taking Up An Internal Pressure Pn16.