Peat Improvement Under Vacuum Preloading: A Novel Approach for Bog Roads in Ireland
Citation:
Osorio J.P., Farrell E.R. and O'Kelly B.C., Peat Improvement Under Vacuum Preloading: A Novel Approach for Bog Roads in Ireland, Invited presentation at the Joint Symposium on Bridge and Infrastructure Research in Ireland and Concrete Research in Ireland (BCRI 2010), Cork, Ireland, 2?3 Sept, 2010Abstract:
This paper presents the preliminary findings of a TCD/NRA vacuum preloading field
trial which is part of a research project into construction options for improving
rampart roads. Vacuum preloading is a construction method utilized to accelerate
settlement and increase shear strength by applying a vacuum pressure to the ground by
means of prefabricated vertical drains, 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 ad-mixtures. The paper presents a review of current literature on the subject and describes the setup and initial stage of the TCD/NRA vacuum preloading field trial, which is currently being carried out at Ballydermot bog. The test consists in a 10x10m heavily instrumented area in which
the settlement, reduction in pore water pressure and increase in shear strength are
being investigated to evaluate the improvement achieved in the peat foundation with the vacuum preloading technique.
Author's Homepage:
http://people.tcd.ie/bokellyDescription:
PUBLISHEDCork, Ireland
Author: O'Kelly, Brendan
Other Titles:
Invited presentation at the Joint Symposium on Bridge and Infrastructure Research in Ireland and Concrete Research in Ireland (BCRI 2010)Type of material:
Invited TalkAvailability:
Full text availableMetadata
Show full item recordLicences: