Murphy Pipelines - West East Link Main Pipeline (565)
Design Co-ordination
United Utitlites, Murphy
Manchester, England
1 Mar 2009
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1 Oct 2010
The WELM project required the installation of a 44km ∅1219mm steel bi-directional water pipeline using E-Joints and CANUSA wrapping techniques to allow United Utilities to conduct maintenance works on existing ageing aqueducts. The flow of water was to be pumped from Prescot in Merseyside to Woodgate Hill in Bury, with a gravity-fed flow allowing water to be returned in the opposite direction.
QEM Solutions scope of work included the design and development of temporary works for 32# segmental shafts, ranging from 10m – 35m in depth in order to facilitate 29# tunnel crossings (the longest being 647m in length) and 21# sheeted pits to allow for 44# augerbore crossings to be carried out safely.
Benefits of engaging QEM Solutions:
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It allowed a significant member of the senior management team a release from this role in order to focus on an engaging and continually demanding project whereby his experience was required to man-manage several technically difficult sections of the project.
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The release also meant that he was able to allocate time to other projects, including managing the tendering process for new contract opportunities and the managing of another 1219mm pipeline project.
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Through the employment of QEM Solutions on this project, the Murphy team were left with template documents for completing their calculations in future, allowing them to continue producing detailed predictions of several trenchless crossing techniques, accurately and quickly.
Working for the contractor, main responsibilities include:
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Generating calculations to predict: ground settlement; jacking forces; stresses on temporary works; bending stressed induced on other mains within the scope of a trenchless crossing; and the pressure required to maintain the integrity of a stable tunnelling operation.
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Producing method statements and risk assessments.
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Working on Form A submissions for rail crossings.
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Producing a training database that could be used on multiple sites to allow for a comprehensive training archive to be maintained.
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Generating presentations to cover tender applications for other proposed projects.