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dc.contributor.authorO’Dwyer, Kevin G.
dc.contributor.authorMcCabe, Bryan A.
dc.contributor.authorSheil, Brian B.
dc.contributor.authorHernon, David P.
dc.identifier.citationO’Dwyer, K.G., McCabe, B.A., Sheil, B.B. and Hernon, D.P. (2018) Blackpool South Strategy Project: analysis of pipe-jacking records, Proceedings of Civil Engineering Research in Ireland (CERI 2018), pp. 265-270.en_IE
dc.description.abstractIn recent years, there has been an increased resort to microtunnelling/pipe-jacking as a means of constructing underground conduits (for water, sewage, gas and other utilities) to avoid on-street disruption in urban areas. In this paper, technical details of two 1200 mm internal diameter microtunnels in silty sand totalling 550 m in length are discussed; the microtunnels were constructed by Ward and Burke Construction Ltd. as part of the Blackpool South Strategy project. A general overview of the tunnelling process is provided, including the separation plant, jacking facilities and the bentonite supply process. The results show that the lubrication system was very effective at maintaining low skin friction levels, and that the pipe string was almost fully buoyant for the majority of the drive. Stoppages were shown to have a significant but transient effect on the jacking force; high jacking forces upon resumption of jacking after a stoppage return to ‘baseline’ levels after the length of one pipe diameter. Machine deviations did not appear to play a major role in increasing jacking forces for this particular project.en_IE
dc.description.sponsorshipThe first author is funded by an Irish Research Council Enterprise Partnership Scheme (IRC-EPS) Postgraduate Scholarship, with Ward and Burke Construction Limited as the industry partner. The third author is supported by the Royal Academy of Engineering (U.K.) under the Research Fellowship Scheme.en_IE
dc.publisherCivil Engineering Research in Ireland CERIen_IE
dc.relation.ispartofProceedings of Civil Engineering Research in Ireland (CERI 2018)en
dc.subjectJacking forceen_IE
dc.subjectSkin frictionen_IE
dc.titleBlackpool South Strategy project: analysis of pipe-jacking recordsen_IE
dc.typeConference Paperen_IE
dc.contributor.funderIrish Research Councilen_IE
dc.contributor.funderRoyal Academy of Engineeringen_IE
dc.local.contactBryan Mccabe, Dept. Of Civil Engineering, Coll Engineering & Informatics, Room Eng-1040, Nui Galway. 2021 Email:

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