Water and Effluent Treatment Magazine
Issue link: https://fhpublishing.uberflip.com/i/468709
Part of the brief was to seal and repair existing sewers and manholes and build new overflow sewers Let Denso Transform Your Pipebridge! From this... Flaking original coating/rust with pitted surface. To this... Protected by the Denso Steelcoat 100/400 System. ...Act now before it's too late! If you have a deteriorating steel pipebridge, the Denso Steelcoat 100/400 System can save it, normally long after alternative conventional coating remedies cease to be effective. In compliance with enviromental restrictions against shot blasting, over rivers etc, the system only requires simple hand tool surface preparation and once applied properly will give a minimum of 20 years maintenance free service life. Only Denso can offer this amazingly long service life from simple hand tool surface preparation. Please don't leave it too long before you talk to us though because corrosion never stops and whilst Denso have the best solution for you that is available, even we can't work miracles. LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY Winn & Coales (Denso) Ltd Tel: 0208 670 7511 ● Web: www.denso.net Please email UK Sales Manager, Keith Corfield for more information or for an obligation free survey of your pipebridge: kcorfield@denso.net Call 01527 833383 for advice and support Low Energy Ventilation & Odour Control Efficient, Effective, Innovative Solutions Air Technology Systems Ltd 8 Aston Court, Bromsgrove Enterprise Park Bromsgrove, B60 3AL Tel: 01527 833383 www.atsclimate.com water industry specialists APPROVED CONTRACTOR This is the first time that a CIPP liner has been used as a stand- alone liner and they can be designed to have either a circu- lar or oval cross section in a diameter range from 150mm to 1,500mm. This offers opera- tional flexibility for lining head- ings with variable dimensions. The development of this innovative lining solution cou- pled with a UV light curing sys- tem for the chalk headings has provided minimal environmen- tal impact by eliminating the need for a grout surround. The remote installation method and short installation timescales minimised the requirement for entry into the headings helping to reduce health and safety risks to the operatives and had a major impact in reducing the programme schedule for these works. Safe working methods has been paramount on the project, with a workforce of more than 100 working on the scheme, some in tunnels up to 10m underground. This required pro- ject-specific health, safety and risk management systems that included a resident specialist safety manager and tunnel res- cue team. Rescue training The project safety record was exemplary with 120,000 man hours worked without a reporta- ble incident. To support the local community, joint tunnel rescue exercises were conducted with the local fire and rescue service with the project team leading these exercises and pro- viding specialist rescue training. In conjunction with the Envi- ronment Agency, talks were given to the teams about good working practice for working in close proximity to an aquifer. The use of headings for sew- erage infrastructure is unique to the UK and has the potential to impact the aquifer if the sewers surcharge and flows are uncon- trolled during storms. The depth of the sewers – some up to 10m deep - presented some unusual challenges, not least how the sewers were accessed to start the work This is why underground engineering specialists were used and bespoke systems were created. These new innovative solutions have been proved for use in delivering the future phases of the project over the next five-plus years. Work is being carried out by contractor Clancy Docwra, which has also been working designers Atkins on the project