The Feeder 9, River Humber, replacement pipeline project, United Kingdom
The Feeder 9, River Humber Pipeline project is required to replace the existing Feeder 9 gas pipeline with a new 1,050 mm high pressure gas pipeline under the estuary of the River Humber. To avoid any impact on the local environment, the pipeline will be installed inside a precast concrete lined tunnel. The tunnel is being excavated utilizing a 4.4 m diameter Slurry Pressure Balance Machine to provide a tunnel of 4.9 km in length with an internal diameter of 3.65 m.
Following completion of the tunnelling works the pipeline is inserted as a continuous 4,992 m string into the water filled tunnel before connecting at each end to the existing Feeder 9 pipeline. Despite the huge technical challenges involved in this project, the project team in collaboration with National Grid, have developed a solid technical solution to the installation of a circa 5 km pipeline into a flooded tunnel, an achievement that has not been equaled anywhere in the world, which gave a registration in the Guinness Book of records!
This EPC-project was commenced in May 2016 and will be fully completed by August 2021.
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Pipeline Technology Journal 3/2022
This issue of the Pipeline Technology Journal is focussing on Construction & Coating
On its 54 pages this issue features papers from 4 different companies. From Alkali resistance in coatings over a report about a construction project under the river Humber in the United Kingdom to the use of mobile VFT Welding Tracs.
This issue for the first time features "Ask the Experts". Previously only published in the News of the ptj website, this collumn will be part of every issue released in the future.