Water and Effluent Treatment Magazine
Issue link: https://fhpublishing.uberflip.com/i/879866
OctOber 2017 WET NEWS 13 ProjEcT SPEcS • Strengthen and rehabilitate the underlying hard-shoulder drains between M6 junctions 16 and 19 to cater for the demands of All Lane running TEchKNoW • the liner comprises fibreglass, a polyester resin and a UV actuator • A typical 300mm (12") diameter pipe cures at a rate of 1.5m per minute • the UV method is much simpler and does not produce any environ- mental contamination • Once the lining is in place robotic cutting techniques are used to open lateral connections ThE VErDIcT "Spot digs are always likely to be necessary for reactive excavation / investigation work, but for longer runs we believe that UV-cure is currently the best available technology" Stuart Ashton, Sapphire Utility Solutions NEED To KNoW 1 All Lane running will operate for 30km on the M6 between J16 and J19 2 the speed of pipework rehabilitation is important where drainage pipes run under busy highways 3 the alternative to re-lining would have been pipeline replacement 4 A carillion Kier joint venture is one of three delivery partners working on the Highways england Smart Motorway Programme pipe but a typical 300mm (12") diameter pipe cures at a rate of 1.5m per minute. The lining is then fully cured, providing a rigid, durable pipe with a design life of 70 years. Once the lining is in place Sapphire employs robotic cutting tech- niques to open lateral connections. The UV curing process involves a high degree of qual- ity control and traceability. "The liner is delivered in a temperature-controlled vehicle by the manufacturer in Ger- many, and the batch details along with records of the pres- sure, temperature and the speed of the light train are all logged," adds Ashton. "Sam- ples are cut and tested to spec- ification, and the client is sup- plied with a copy of the data." Looking forward, Ashton says: "Spot digs are always likely to be necessary for reac- tive excavation / investigation work, but for longer runs we believe that UV-cure is cur- rently the best available tech- nology. Sapphire Utility Solu- tions has employed UV-cure pipe lining in the water indus- try, but the M6 project is the first time that we have utilised this technology in the high- ways sector. Considering the major advantages of this tech- nique we believe that it will become the preferred method on future projects." the UV-cure method was used to dramatically reduce the time required to rehabilitate drainage pipes Sapphire was able to complete the work at night using UV-cure, and without the need for road closure Wedeco Spektron UV Wedeco LBX UV Reactors Sanitaire Aeration Grids Hydroejectors & Radial Aerators Flygt Jet Aerators & Mixers Flygt Mixers AVAILABLE FROM XYLEM WATER TREATMENT 24/7 HIRE RAPID BESPOKE DESIGN SOLUTIONS DIRECT FROM THE MANUFACTURER FOR ULTIMATE PEACE OF MIND • Cost effective temporary treatment installations • Plant refurbishments | Repairs | Seasonal Overloads Drought Alleviation • Portable containerised systems available for larger projects • Planned, bespoke and reactive maintenance solutions • PLUS monitoring, control and analytical equipment also available 0845 707 8012 fgb.rental@xyleminc.com | www.xylem.com/uk flygt_sanitaire_wedeco treatmentl advert aug 2017_Layout 1 04/08/2017 15:18 Page 1