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2.1 CIVIL ENGINEERING, Civil engineering, Geotechnics
This paper presents the preliminary findings of a TCD/NRA vacuum preloading field trial that is part of a research project into the construction options for improving rampart roads. Vacuum preloading is a construction method used to accelerate settlement and the increase shear strength by applying a vacuum pressure to the ground by means of prefabricated vertical drains, an impervious tight sheet and a vacuum pump. Consolidating the ground by applying a vacuum load has several advantages over other techniques, for example; no fill material is required; construction periods are generally shorter; and there is no need for chemical admixtures. This paper presents a review of the literature and describes the setup and initial stage of the TCD/NRA vacuum preloading field trial, that is currently being carried out at Ballydermot bog.
Osorio, Juan Pablo, Farrell, Eric Raymond, O’Kelly, Brendan Christopher. (2010). Peat improvement under vacuum preloading: a novel approach for bog roads in Ireland. In: Joint Symposium Proceedings, Bridge & Infrastructure Research Ireland and Concrete Research Ireland. Eds: Ní Nualláin, Nóra Áine; Walsh, Des; West, Roger; Cannon, Eamonn; Caprani, Colin and McCabe, Bryan. Ireland 2-3 September 2010. Cork: Cork Institute of Technology, 255-262.
National Roads Authority, Ireland