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Temporary business operations in place, please read our company statement for more information.

Cable Percussion

Ground Investigations Ireland Ltd have a total of 5 Dando 2000 Cable Percussion boring rigs which are used for Geotechnical and Environmental ground investigations.  

Cable percussion boring is a tried and tested method of site investigation. The boring technique allows the installation of casing inside the borehole to prevent loose soils collapsing into the hole, allowing the borehole to be advanced to considerable depths while maintaining good progress and sample recovery.

‘Clean’ boring techniques can be utilised with the provision of different sized casing to prevent mixing or contamination in the upper strata’s from affecting deeper strata. This is especially important on sites with variation of the soils and high concentrations of mobile contaminants. Boreholes can be drilled at a variety of diameters including 150mm and 200mm 

In-situ testing can be undertaken in the borehole including Standard Penetration Testing (SPT), borehole vane testing & permeability testing.

Disturbed samples are taken from the borehole by the drillers for logging by an experienced Engineering Geologist, Geotechnical Engineer or Environmental Engineer.

Undisturbed tube samples including Piston Samples and thin walled U100 can also be recovered for laboratory testing. On completion, gas and groundwater monitoring pipes and geotechnical monitoring equipment can be installed in the borehole to allow later measurements by an Engineer.

The rig is towed into position using a 4-wheel drive vehicle, meaning that these rigs can be used in most locations where there is sufficient space; a considerable working area and head room is required however. The rigs are fitted with lifting points enabling them to be moved into position by a crane on difficult sites or onto an overwater drilling platform.

Upon completion of cable percussive testing an experience Engineering Geologist or Geotechnical Engineer will prepare detailed geotechnical logs using AGS compatible software.

Ground Investigations Ireland can prepare soil test schedules on our Clients behalf and will undertake soil testing to determine the soil engineering characteristics required for the proposed design.

All fieldworks are carried out in accordance with Eurocode 7 Part 2 Ground Investigation and testing (ISEN 1997-2:2007) and BS 5930.

Coronavirus COVID-19 Position Statement

Coronavirus COVID-19: Position Statement update for Ground Investigations Ireland Ltd

Due to the current measures put in place by the government, for the health and wellbeing of our workforce and the Public to curb the spread of Covid-19, GII have taken the following actions. 

All site works have temporarily ceased unless deemed necessary to deal with the current national Emergency, our rigs have where necessary been demobilised back to our yard. We will be continuing with works once the restrictions are lifted and will return to any site works that are incomplete. 

All of our engineers are working from home and will be able to finalise some works, there will be a limit on what can be achieved but we will endeavour to complete the works we can and get the information to our clients as promptly as possible your patience is appreciated at this time.  

We will still be accepting Tender and Pricing enquiries, if you can contact James Lombard on his mobile number below, for any other enquiries please contact one of the mobile numbers or e-mails listed below. 

Thank You for your support and we wish you and your employees and families the best and hope that you remain safe during this period.

James Lombard

Fergal McNamara

Barry Sexton

Conor Finnerty

Aisling Mc Donnell