Water and Effluent Treatment Magazine
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20 | WET News | February 2014 | PiPes & drainage The Perfect Manhole System .....everything flows! T: 01179 812791 F: 01179 814511 E: perfect@cpm-group.com www.cpm-group.com Concrete for Life Manufactured and tested to BSEN 1917:2002 and BS5911-3:2002 Manhole design and construction has remained unchanged for many years. After an extensive research programme CPM introduce the perfect manhole system, to meet the challenges of modern day construction. This CPM off-site solution comprises of a monolithic precast concrete manhole base available pre-benched in any configuration within just days of requisition, and in addition, sealed chamber rings with a thicker wall, rubber joint and sealed cover slab. This unique system of products combine to form the perfect manhole designed and manufactured from high quality durable concrete with a minimum 120 year design life that does not need a concrete surround unless specifically required. The Perfect Manhole System Delivers up to 40% savings on GHG emissions compared with traditional build. The Perfect Manhole System Configurator / Perfect Manhole take off tool Is available to download from our website. Build Greener Build Leaner Build Faster Build Safer Build Quality Perfect Watertight Joint Perfect Base Perfect Hydraulics Drainage A progrAmme of work designed to improve water quality, minimise leakage and extend the asset life of pipes in Kirk Deighton, near Wetherby, Yorkshire, saw Yorkshire Water and contract partner Morrison Utility Services, introducing innovative new technologies and techniques as part of a continuous drive for best practice utility works management. From the outset, identifying ways in which to raise the bar in innovation was a key fo- cus for the project team as it sought to address two key ob- jectives − minimising disrup- tion and ensuring best value water mains network invest- ment as part of the project. Prior to any work taking place, the process of assess- ing the mains asset condition was identified as a key area through which an innovative new way of working could be introduced in order to ensure informed decisions on ex- penditure for the project. By deploying the innova- tive JD7 Pipescan+ pipeline inspection and assessment solution, the team was able to capture detailed, previous- ly unobtainable, structural mains asset condition data that was used to calculate the remaining life expectancy of pipework and determine the most critical areas of the net- work requiring investment. Pinpoint accuracy Using ultrasonic probes, coupled with a hi-resolution camera system, PipeScan+ was able to take thousands raising the bar in innovation Yorkshire Water and morrison Utility Services used innovative new techniques to determine the asset life of pipes in Kirk Deighton. The technology used meant there were no interruptions to water supplies. plied to the internal bore of 2,000m of water mains in Kirk Deighton. disruption levels Never previously applied to a live water network anywhere in the world, the entire lin- ing process took just 14 days from beginning to end, con- siderably reducing both the duration of the works and potential disruption levels, whilst delivering a number of benefits to local residents and the surrounding environment. These included: 'Spray lining' capability, ensuring that drinking water quality was maintained in an area susceptible to fluctua- tions in flow and pressure Vastly reduced network in- terventions as a result of rap- id application and cure times − with a cure time of just ten minutes, relined pipes could be returned to service within an hour of application, ensur- ing minimal customer impact and stress on the distribution system Local farmland and habi- tat, including a population of protected species Great Crested Newts, remained unaffected due to minimal requirement for disruptive ex- cavation and replacement Supported by a robust and proactive customer commu- nication and stakeholder en- gagement plan, the work was completed without a single customer complaint or sam- ple failure. ■ The system uses ultrasonic probes and hi-resolution camera of measurements in minutes, providing the team with full dimensional surveys compris- ing multiple wall thickness measurement, corrosion and flaw identification. Rather than relying on remote application, the sys- tem's acoustic capability is inside the pipe, ensuring that leakages could be located with pinpoint accuracy. Us- ing rotating, ultrasonic trans- ducers, PipeScan+ provided the advantage of 360-degree pipework scans that could be assessed without interruption to the area's water supplies – one of the first examples of a water mains being investi- gated and assessed whilst still in commission and serving customers. Moving forward, repeat surveys will enable Yorkshire Water and Morrison Utility Services to determine specific and generic pipe deterioration rates, a development with the potential to revolutionise Yorkshire Water's ability to develop asset management plans for its water infrastruc- ture. Innovation also played a pivotal role in fulfilling an- other of the project's key ob- jectives − to minimise impact on the public and the local environment. With this is mind, the de- cision was taken to dispense with traditional, and typically more disruptive, techniques in favour of an innovative and cost-effective trenchless rehabilitation alternative, Scotchkote Pipe Renewal Liner 2100, a fast-drying pipe lining resin that was ap- The system is totally mobile pipework scans can be assessed without interrupting water supplies The team was able to capture structural mains asset condition data Fields of ...