GDG participates in the CERAI 2018 Conference

Thursday, 13th September 2018

GDG is delighted to participate in the Civil Engineering Research in Ireland Conference (CERI2018) organised by the Civil Engineering Research Association of Ireland (CERAI).

The conference brings together researchers across a wide spectrum and showcases some of the best Irish research.  The keynote lecture is being presented by GDG founder Professor Ken Gavin on CPT methods for the design of deep foundations on sand. Ken’s talk captures a wealth of information on the behaviours of foundations on sands.

It was a busy couple of days for GDG at the CERI2018. Paul Quigley and Dr Lin Zhang presented the results of a collaboration with the Geological Survey of Ireland on making AGS data available from the GSI borehole database. GDG developed a software tool which will convert data from the GSI Borehole database into AGS files. The paper describes the benefits to industry on making AGS files more widely available and calls for AGS files to be a key deliverables for all ground investigations in Ireland.

Paul Quigley presented our paper on ground movement predictions associated with pile driving in Gothenburg co-authored with GDG colleagues Yeganeh Attari, Paul Doherty and Nicholas Lusack from MEC. The paper describes a numerical study of the installation effects associated with installing 300 precast piles on a confined site. The large number of piles result in soil being displaced laterally which could damage existing piled structures. The paper describes a validation exercise using PLAXIS 3D for a single pile and how the design was developed to a successful conclusion.

Juliana Vasconcelo presented details of a study carried out with GDG colleagues John O’Donovan, Paul Doherty and Shane Donoghue (UCD) on the development of a programme ALLPILE to incorporate CPT results into pile designs. CPT based pile design methods generally give less conservative predictions of axial pile capacity compared to other methods which is attributed to the continuous profile of soil response that the CPT provides. The applicability  of the software was demonstrated using a case study from Belfast where sleech overlies sand deposits.