Slope stabilization of an embankment on the West Coast Main Line, UK
Item Type:Invited Talk
Citation:O'Kelly B.C., Ward P.N. and Raybould M.J., Slope stabilization of an embankment on the West Coast Main Line, UK, Invited presentation at the First International Conference on Transportation Geotechnics, Nottingham, UK, 26th August, 2008
2008_Invited presentation_Slope stabilization of an embankment on the West Coast Main Line UK_26th Aug 2008.pdf (Accepted for publication (author's copy) - Peer Reviewed) 404.3Kb
A site inspection of an embankment on the West Coast Main Line (UK) revealed a general de-terioration of the embankment, significant movement of the trackside services and waterlogging and bulging along the embankment toe. The medium-height embankment, with side slopes at about 30 degrees to the hori-zontal, was constructed on natural sidelong ground and the site had been an area of previous instability (for-mer ash and slag tip). Site investigation, ground monitoring and analytical modelling indicated that the em-bankment was at limiting equilibrium and that recent progressive movement was occurring along a rotational slip surface located within the embankment core (ash and slag materials overlying reworked glacial till). The upgrade works comprised the installation of a row of stabilizing piles along the mid-height of the embank-ment side slope (facilitating Green Zone working); regrading to prevent shallower slips near the embankment crest and the installation of a toe drain that discharged to a nearby stream.
Other Titles:Invited presentation at the First International Conference on Transportation Geotechnics
Type of material:Invited Talk
Availability:Full text available