Water Mains & Services & Leakage
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The Behaviour of Buried Plastic Pipes at Different Depths
Price: £100
Ref: 01/WM/02/17
ISBN: 1 84057 2434
Monitoring of buried PVCu and thin wall biaxially oriented pipe at operational sites at Chorley and York has shown that loads and deformations of the pipe are predominately generated during installation and that subsequent transient traffic loads produce no permanent changes. Measurements of backfill temperatures have shown long time lags between changes in surface temperature and those at pipe depths. Data from monitoring pipe laid at shallow depths and from laboratory tests have demonstrated that water temperature dominates the pipe environment. The site measurements show no evidence of freezing in mains laid with 750mm cover. Projections from laboratory tests to simulate worst case conditions have shown that very prolonged periods of cold weather would be required to freeze water in plastics mains laid with reduced cover of 750mm. With tough PE pipes purchased to Water Industry Specifications, there are not believed to be any serious concerns regarding structural performance if there is controlled us
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Understanding Burst Rate Patterns of Water Pipes
01/WM/02/16 - ISBN: 1 84057 242 6A range of different water companies have supplied UKWIR with their pipe burst data for the last few years and these have been combined into one �national� database. The level of detail in some of the data from smaller co... More...
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Evaluation of Welding & Jointing of Plastic Pressure Pipes
01/WM/02/15 - ISBN: 1 84057 240 XWelding criteria for PE systems have been evaluated by analysis of thermal data to try to reduce heating/cooling cycles and thus speed up jointing where butt fusion is used. A new harmonised set of welding conditions have bee... More...
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Performance of Electrofusion Joints for PE Pipes
99/WM/02/10 - ISBN: 1 84057 153 5The large number of service failures of electrofusion joints remains of prime concern to UK water industry. This investigation combines the findings of two year's work looking at the effects of site conditions, joint preparat... More...
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Towards Best Practice for the Assessment of Supply Pipe Leakage
05/WM/08/32 - ISBN: 1 84057 397 XA supply pipe leakage estimate is required for regulatory reporting. However, a more detailed understanding of proportion of total leakage that is associated with supply pipes will also improve operational allocation of le... More...
Price: £200
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Service Pipe Leakage
02/WM/08/28 - ISBN: 1-84057-278-7Leaks from services pipes account for a significant proportion of unaccounted for water in UK water distribution networks. This report covers various aspects of the subject looking principally at detection and location metho... More...
Price: £100
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