newsletter - gdgeo.com newsletter issue... · gdg also employed a number of interns, giving them...

Summer and Autumn 2016have been busy for GDG staffand the Directors would liketo sincerely thank everyonefor their efforts in deliveringa high volume of qualitywork against challengingdeadlines.There was a slowdown inmarket opportunities in theUK following Brexit. Marketuncertainty and thedecreasing value of Sterlingwill add to our challenges.Thankfully, opportunitieshave picked up into theAutumn and new UK clientsand projects secured.Eight new staff wereappointed over the summer.GDG also employed anumber of interns, givingthem valuable experiencebut also providing ameaningful role for them onproject work.The urban basementdevelopment sector hasbeen busy in London andDublin. GDG is carrying out afoundation assessment for

the Royal Albert Hall and afoundation design isunderway for a multi - storybuilding in Woking. GDGcarried out an interestingmovement prediction designfor a piled multi – storybuilding in Gothenburg.The Ports and Harboursector has also been busy.Tender designs werecompleted for Prince CharlesWharfe, Dundee and DoverPort. GDG is designer for L &M Keating/ Roadbridge onDublin Port. More portprojects are in the pipelinefor 2017.

Last but not least GDG wonthe 2016 Engineers IrelandGeoscience Award. Welldone again to all involved.

Newsletter Issue 8 | Summer/Autumn 2016

Gerry O’Sullivan Director

Providing efficient and reliable geotechnical solutions for the most challenging projects

Welcome to the eighth edition of theGDG Newsletter, Summer/Autumn 2016

CONTENTS:

New Projects

- New piling technologies for the

offshore sector

- Quaternary field mapping

- Red Bog Quarry Safety Assessment

- Groundwater 3D aquifer mapping

- Helical Pile Design

- Tunnel Movement Assessment

- Coastal Baths Redevelopment

Ongoing Projects

- Tender designs for Belfast and Dundee

- Portbury Dock Ro-Ro Berth Tender, Port

of Bristol

- Prince Charles Wharf, Port of Dundee

General News

₋ How much is spent on GI?

₋ QUB - GDG Fusion research

₋ Design of Offshore Wind Turbines

course

₋ TU Delft appointment

₋ Capability Statements

₋ GDG Scotland News

₋ New Appointments

₋ Memberships

₋ Events

NEW PROJECTS

Over the past couple of years, the offshoregroup within GDG has been working closelywith state of the art equipment company,Bauer Maschinen, in the development ofnew piling technologies for the offshoresector.

Recent work has included detailed numericalstudies and interrogation of experimentaldata in relation to the MIDOS pile system,which utilizes deep mixing technologies tooptimize pile installation times, providing anefficient alternative to Drilled & Groutedpiles in certain ground conditions.

Some of the work completed to date hasbeen compiled and published in the recentproceedings of the Energy GeotechnicsJournal - the article is titled “Innovativedeep-mixing methods for oil & gasapplications”. GDG is also currently workingon pile optimization projects for jacket skirtpiles, vibratory installed piles, helical piles(screwpiles), and grouted rock socketedpiles.

Deep Mixing Pile Technology – The future of deep foundations?

The Quaternary mapping project will studythe near surface geology and the data willupdate the Quaternary geology map andhelp scientists and planners to betterunderstand the make-up of the subsoils,rocks, water, natural heritage and naturalresources of the counties Cavan, Leitrim,Longford and Monaghan.

This project involves describing sedimentsexposed at the surface and collectingsamples to carry out further lab analyses.The last week in the field will be dedicatedto the supervision and the description of 25boreholes. The boreholes are up to 20 mdeep and are filled in after drilling.

Thereafter, geophysical surveys usingGround Penetrating Radar (GPR) andElectrical Resistivity Imaging (ERI) systemswill be performed in some areas. Finally, atechnical report will be written to synthesizeall information obtained during the fieldmapping. All the geological maps are publicand are available on the website of the GSI.

Page 1

GDG Newsletter Issue 8 Summer 2016

GDG and GSI are working togetheron the Quaternary field mappingproject

Gavin & Doherty Geosolutions’ EngineeringField Geologist, Christopher Dimet, wasselected by the Geological Survey ofIreland (GSI) for a 2 months projectfocused on land mapping.

NEW PROJECTS Continued

GDG delivers Red Bog Quarry Safety Assessment

Page 2

Gavin & Doherty Geosolutions Limited(GDG) has been appointed by Roadstone toprovide a geotechnical assessment for theRedbog sand and gravel quarry pit.

The Red Bog pit is an active sand andgravel quarry comprising of about 45hectares approximately 25km south ofDublin near Blessington Co. Wicklow. Thepurpose of this Geotechnical assessmentwas to identify and assess all factors liableto affect the stability and safety of theexisting quarry in order to improve thesafety of the quarrying operations. Thequarry has numerous steep faces offluvioglacial sands up to 30m high.

Previous site investigation studiessuggested that the Blessington Sands areweakly to moderately cemented. Theability of this material to form steepoutcrops is a testament to cementedsand’s intrinsic material strength; withoutcementation and resulting cohesion, thesematerials would only form slopes as steepas the angle of repose. However, despitetheir apparent increase in strength fromcementation and suction, the tendency forbrittle and sudden failure make the needfor accurate assessment of slope stabilityimperative, especially when lives andinfrastructure are affected.

GDG has developed a new methodologyfor theoretically assessing slopes, using aninfinite slope analysis assumption, which

correlates extremely well with observationsin sand quarries and case studies of coastalerosion of sand cliffs. Surprisingly, manycommon slope mitigation measures such asslacking slopes can reduce the slope stabilityand induce a failure that may not haveoccurred before the intervention. GDG canalso provide practical construction advice onhow slopes may collapse and how to safeguard workers and other stakeholders.


GDG joins GSI for the Groundwater 3D aquifer mapping project

GDG is providing personnel to the GeologicalSurvey of Ireland (GSI) Groundwater Team forthe ongoing Groundwater 3D aquifer mappingproject. As part of her role within theGroundwater 3D team, hydrogeologist SarahBlake has collated data on the Transition Zone(TZ) with a view to characterising andultimately mapping occurrences of the TZ.

The TZ is the broken, weathered zonebetween the subsoil and competent,unaltered bedrock. It may be formed bychemical weathering, or physical processes,or both. It may have a different permeabilityto the subsoil and bedrock, and can act as asignificant pathway for, or barrier to,groundwater and contaminant flow. In somecases, it may also serve to attenuate potentialcontaminants.

The TZ is present in many different types ofIrish bedrock aquifers, and its hydrogeologicalsignificance in poorly productive aquifers as ashallow pathway for groundwater andassociated pollutants is recognised in Irishhydrogeological literature.

…The implications of the TZ as a potentialgroundwater and contaminant pathwaywarrants further investigation into theoccurrence, geospatial variability andhydraulic properties of this poorlyunderstood horizon.

The Groundwater 3D team recentlypresented a poster on the topic at the‘Groundwater in Fractured Bedrock’Conference in Queen’s University, Belfast. Tofurther promote awareness and discussionof the TZ within the hydrogeologicalcommunity, an interactive Transition ZoneStory Map has been created and madepublicly available. The story map ispopulated with photographs of outcrops ofthe TZ from many different sources; mostare donated by interested individuals.

Page 3


Helical Pile Design in Central Dublin

Gavin & Doherty Geosolutions Ltd. (GDG)recently completed a helical pile design forScrewpile Ireland Ltd. The helical piles willsupport a temporary mast to facilitate theredevelopment of a Central Dublin property.

An overhead LUAS line was previouslyconnected to the property and the mast nowprovides the support required to the line sothat it can be disconnected from the buildingand the building can be redeveloped. TheLUAS is now running with the overhead lineattached to the temporary mast.

GDG completed the structural design and thegeotechnical design of the four helical piles thatwill support the mast. The piles were recentlyinstalled by Screwpile Ireland and the mast issupporting the overhead LUAS line (see image).

The piles have the capacity to resist relativelyhigh horizontal loads, moments and tensileforces due to the tension in the overhead line.Eurocode 7 provides no specific guidance for thegeotechnical design of helical piles; however,GDG used their judgement and experience toproduce a comprehensive design that gainedthe approval of Transport Infrastructure Ireland.

The helical piles were steel tubular sections of114mm diameter and 8.5mm thickness. Thehelices were 450mm diameter and spaced at800mm. Image: Overhead LUAS line supportedby the temporary mast to facilitateredevelopment of the property.

Tunnel Movement Assessment

Gavin & Doherty Geosolutions Ltd. (GDG)completed a ground movement assessmentfor a property redevelopment taking place inproximity to London Underground’s (LUL)Northern Line. One of the conditions ofplanning required a detailed groundmovement analysis to be undertaken toconfirm the impact of the new basementconstruction on the adjacent LULinfrastructure.


Figure 2 Soil heave following consolidation phase after thebasement excavation was completed

The outcome of the numerical analysisdemonstrated that the maximum predictedmovements generated in the tunnels due tothe proposed excavation and futureconstruction was minimal. The predictedmovements were shown to have no adverseimpact on the LUL Northern line tunnels,which allowed the project to proceed in atimely manner.

GDG has been appointed by Iarnrod Éireann(Irish Rail) to develop a complete suite oftraining and assessment material forstructural inspectors inspecting earthworkson the Iarnród Éireann Network.

GDG reviewed the site-specific geotechnicalinformation and historical borehole logs toproduce a ground model that incorporatedthe available information about the NorthernLine running tunnels including their positionand elevation in relation to the location ofthe new basement.

The construction sequence was modelledusing 3D finite element software thatexplicitly considered the tunnel lining andincluded excavation of the site, while theexisting property is underpinned, followed byan increase in loading due to the addition ofa basement level and a new storey at the topof the building.

Fig 1 Generated lateral displacements in the tunnel rings inthe short-term

GDG also included an assessment of the long-term movement over the lifetime of thestructure by including a consolidation phaseto simulate the equalisation of the LondonClay strata underlying the basement.

Both the short-term and long-termmovement of the tunnel were found to besmall, with the analysis yielding maximummovements of 2.4mm, as illustrated in Figure1.



Coastal Baths Redevelopment

GDG is supporting Dun Laoghaire-Rathdown Council in the ongoing upgradeto the historic Dun Laoghaire Baths,expected to go to tender in Q4 2016. Anew quay wall will create a sheltered havenfor swimmers and water-sportsenthusiasts, and bring the currentlyabandoned seaside facility back to life.

…GDG is working with Garlands to deliverthe marine and heavy civil engineeringdesign work required to realise thisambitious public project, including quayand revetment design, seawall design, andslope stability analysis. GDG and Garlandsare working together to deliver high value,pragmatic engineering solutions for a publicproject with challenging design drivers andsite constraints.



ONGOING PROJECTS

D3 Quay Tender, Belfast Harbour

GDG has recently provided valueengineering design services to assist a majorCivils & Marine Contractor in their tendersubmission for the new cruise terminal atthe D3 site in Belfast Harbour.

Imagery @2016 Infoterra Ltd & Bluesky, Google Map data@2016 Google

GDG’s scope included the initial review andinterpretation of site investigationinformation to estimate parameters fordesign considering temporary bund stability,as well as other engineering assessmentssuch as estimating the magnitude and

timescales of construction settlement due toinfilling activities and also looking at bothpile driveability and temporary pile stabilityin variable ground conditions.

Portbury Dock Ro-Ro Berth Tender,Port of Bristol

Image: Portbury. Source: The Bristol Port Company

Port of Bristol intend to construct a new RollOn Roll Off Berth at their site in PortburyDock. GDG recently carried out pile designon this project for a major Civils & MarineContractor. In this tender design supportservices included the design of both tensionand compression piles considering noveldesign methodologies and working closelywith the client to ensure high delivery ofvalue engineering.

Prince Charles Wharf, Port of Dundee

Image: Port of Dundee. Source: Fourth Ports

Prince Charles Wharf at Dundee is plannedto be upgraded to accommodate the marinerenewables and oil and gas sectors. Theexisting wharf comprises steel tubular pilesconnected to Larsen sheet piles which havepartially corroded over time. The existingwall has also been subject to the failure oftie rods which help anchor the wall back to arear anchor wall.

GDG has moved to a new office!

We are excited to announce that GDG’s Dublinteam has just moved to a new location inNutgrove Office Park, Dublin 14 on Monday,September 12th. We spent the previous 5years based in Clonskeagh, approximately 10min drive from our new location. Our oldoffice served us well, where over 300 projectswere delivered, but we couldn't be moreexcited about our brand new space, whichfacilitates our continued expansion!

Founded in Dublin in 2011, GDG started withtwo employees, the co-founders Paul Dohertyand Kenneth Gavin. The company now hasover 25 employees spread across ourbranches in Belfast, Edinburgh and London,

GENERAL NEWS

with the majority based in our head office inDublin. The new Dublin office is very welllocated at the following address: Unit A2,Nutgrove Office Park, Rathfarnham, Dublin14, D14 X627

GDG represents Ireland at the YoungTransportation Geotechnics Engineersconference

Karlo Martinovic, Design Engineer at GDG,represented the Republic of Ireland atthe Young TransportationGeotechnics conference that took place on 4thSeptember 2016 in Guimaraes, Portugal.

The conference was a part of a larger 3rdInternational Conference onTransportation organised by ISSMGE.Following a competitive review process,Karlo was selected by Engineers Ireland as thenational representative earlier this year.

His presentation “Landslide susceptibility ofgeotechnical assets on transportationnetworks: Irish Rail case study” introducedsome recent work undertaken on high-endstatistical tools for predicting the failurelocations on earthwork assets for largetransport networks.

This is a novel engineering approachdeveloped by GDG and successfully applied tothe Irish Rail network. The presentationresonated very well with the overall slopemanagement theme of the main conference,confirming GDG’s state-of-the-art experiencein slope stability and earthwork management.Image: Vila Flor Cultural Centre, BilheteriaOnline


…Working with a top multi-disciplinaryconsultancy, GDG was requested to evaluatethe performance of a quay wall extensionwhich included the development of a newinnovative design adopting compressive loadtransfer of ground and surcharge pressuresonto a new king post wall structure. This newdesign considered the issues encounteredduring the existing design and associatedconstruction methods in order to ensure thatthe end client received a cost effective butrobust design solution that would removereliance on the performance of the existingwharf. Award of this project is due inSeptember 2016.

ONGOING PROJECTS Continued

SMART EU transportation engineering

GDG has recently been successful as a leadingpartner in securing an European TrainingNetwork (ETN), where under the coordinationof Nottingham University we will develop newengineering tools for the transport sector.

The Sustainable Multi-functional AutomatedResilient Transport Infrastructures EuropeanTraining Network (SMARTI ETN), will bringtogether a stimulating platform where keystakeholders of the transport infrastructuresector will work alongside world-wide expertsin smartening of systems (developers of high-tech sensors, advanced monitoring equipment,automated structures, etc.,) with direct supportfrom the roads, railways and airports managers.

This environment will enable talentedgraduates to conceive the transportinfrastructure network of the future and willprovide them with world-wide extended andglobally-leading training. The SMARTI ETNproject has received funding from the EuropeanUnion’s Horizon 2020 Programme under theMarie Curie-Skłodowska actions for research,technological development anddemonstration.


GENERAL NEWS Continued research programme will also be supportedby Dr. Shane Donohue of Queen’s Universityand Dr. John O’Donovan of GDG.

Photo: Civil Structural Health Monitoring Workshop (CSHM -6) attended by GDG at the Queen's University Belfast on May26-27.

GDG has completed over 40 pile foundationand embedded pile wall design projectsthroughout the UK and Ireland over the pasttwelve months. The objective of this projectis to develop user-friendly software tocombined different innovative pile designmethodologies with the most recentEurocode factors.

The design tool will support the analysis ofpiles in layered soils under vertical andhorizontal loading conditions applying therelevant Eurocode Standards and the UK andIrish National Annexes.

Ultimate and Serviceability Limit States arebeing considered, including bespoke t-z andp-y curves for determining pile movementsand the structural analysis of reinforcedconcrete and steel sections. This project is atruly collaborative initiative betweenacademic and industrial partners, that istargeted toward the specific industrial sectorof “soil-structure interaction” !

QUB - GDG Fusion: A collaborativeresearch initiative

Gavin & Doherty Geosolutions Ltd. (GDG) hasrecently partnered with the School ofPlanning, Architecture and Civil Engineering inQueen’s University Belfast to develop aninnovate pile design tool. The research isfinancially supported by InterTrade Irelandthrough the Fusion programme and will beled by Juliana De Oliveira Vasconcelos, aDesign Engineer with GDG. This 12-month

GDG delivers training for Substructure(Foundation) Design of Offshore WindTurbines course

Gavin & Doherty Geosolutions' ManagingDirector, Paul Doherty was among the trainersof the two days course on Substructure…

…(Foundation) Design of Offshore WindTurbines organised by ASRANet Ltd on July 5-62016 in UK.

Image: Global Marine

This course gave a detailed knowledge aboutthe design and analysis of mono pile, and piledjackets. It also included the soil pile interactionand the dynamic responses. The key differencesbetween offshore wind substructure andoffshore substation substructure were alsoemphasised.

Lastly, the course gave the design driver forJacket offshore wind tur-bine substructure.Paul Doherty lectured on the following topics:Overview of the wind turbine sub-structure; Soilstructure interaction; Case studies, and Recentresearch, JIPs and lessons learned.


GENERAL NEWS Continued

How much is spent on GI?

This paper examines a large data set of groundinvestigations and geotechnical projects inIreland and comments on some of thecommercial aspects from the study. More detailsare available from ICE Virtual Library.

Latest news from GDG Scotland!

Proposed Belfast Cruise Terminal location at D3, Airport Road West, Belfast (2016)

GDG has proven to be very successful in the UKmarket and the opening of our offices in Belfastand Edinburgh has brought a positive impactinto our performance. On the Scottish side ofthe business, a lot has been going on and we’dlike to share our most recent news with you!

GDG has taken occupation of a larger office unitat Nexus Business Centre, 21 Young Street,Edinburgh. This larger unit will cater for theplanned increase in GDG operational staff inthe months ahead. If anyone knows of a well –qualified, experienced geotechnical engineerwho would like to work in Edinburgh, pleaseask that person to contact Gerry O’ Sullivan orPaul Doherty.

GDG welcomes a new Design Engineer – DarrenKelly to our Edinburgh Office. Darren joinedGDG for WSP/Parsons Brinkerhoff inManchester. Darren has a PhD in Geotechnicalengineering from Edinburgh Napier University.His experience has been mainly in thegeotechnical engineering elements of major railand highway projects.

GDG has had considerable project success in…

Paul Quigley, GDG's Principal Engineer, led acollaborative effort with colleagues from theGeotechnical Society of Ireland to publish apaper entitled 'Some trends from recentgeotechnical projects in Ireland'.



the UK in recent months. In particular, GDG hasbeen appointed as design team member to anumber of Design and Build consortiacompeting for prestigious projects in variouslocation throughout the UK and NI. Theseinclude:

- Prince Charles Wharfe, Dundee- Dover Port Development- Belfast D3 Dock Development- Lynfy Afan Windfarm, Wales- Dalry Bypass, Ayreshire- Fountainbridge Site Development, Edinburgh

Fountainbrigde, Edinburgh

GDG joins the committee of the recently launched Irish Business Network Scotland

A new organisation to bring togetherbusinesses in Scotland and Ireland waslaunched very successfully in Edinburgh Castleon the 8th of June last.

The event was attended by approximately 120invited guests. The launch of the Irish BusinessNetwork Scotland - IBNS was sponsored byAllied Irish Banks. The initiative is beingsupported by both the Scottish and IrishGovernments. Speakers at the launch includedthe Irish Minister for Public Expenditure andReform, Paschal Donohue TD and Scotland’sCabinet Secretary for Culture, Tourism andExternal Affairs, Fiona Hyslop MSP.

Gerry O’ Sullivan, GDG's UK Director is amanagement committee member andtreasurer of IBNS. Another launch event tookplace in Glasgow in late September.

GDG gets more than its feet wetin offshore work!

GDG founders, Paul Doherty and KennethGavin, both come from a strong researchbackground in value engineering of offshoreand marine piling.

Since company inception, offshorefoundations has been one of the areas of realtechnical strength at GDG, where the teamprovides optimisation and novel ideas to awide range of marine and offshore projects,including new quay wall designs for portredevelopments, offshore wind projects andOil & Gas substructures.

All of these sectors require a clearunderstanding of the soil-structureinteraction and the knowledge of how thisinterfaces with marine plant and offshoreinstallation methodologies.

In some cases, our offshore sectors overlapsuch as the recent work completed by GDGto examine the impact of offshore jackup…

…vessels on harbor infrastructure in NorthernFrance. This project involved developing amodel that considered the interactionbetween the seabed; the jackup vesselspudcans the quay wall and the environmentalloading.

For more details on our offshore or marineprojects, please see our Capability Statementavailable on GDG’s website!


MEMBERSHIP AND AFFILIATIONS

GDG becomes member of theNational Irish Safety Organisation

The National Irish Safety Organisation or NISO,is a limited organisation based in Dublin andfounded on 15 January 1963.

As a voluntary independent body withcharitable status, NISO complements theinformation provided by the Health and SafetyAuthority, the Irish statutory public body with

charitable status, NISO complements theinformation provided by the Health and SafetyAuthority, the Irish statutory public bodyresponsible for the promotion and enforcementof occupational safety and health.

NISO’s mission is to create the conditions whereIrish workplaces are among the safest andhealthiest in Europe. As a member of NISO,GDG will keep up-to-date on the legislation,news and training opportunities in order tobetter promote the health, safety and welfareat work.

Gavin & Doherty Geosolutions(GDG) is now a verified supplier onRISQS!

RISQS is a qualification scheme that helpssuppliers sell in to the GB rail industry byproviding an open, fair and transparent way forthem to be formally recognised as capableproviders of products and services.

In order to become qualified, suppliers areassessed and can be audited to work with over110 buying organisations.


MEMBERSHIP AND AFFILIATIONS Continued

NEW APPOINTMENTS

The GDG team is delighted to welcome our newmembers of staff who bring a diverse range ofexpertise and experience to our offices inDublin, Edinburgh and Belfast.

…GDG is now a qualified supplier, therefore weare now visible as a potential supplier to the railsector.


William BrownSenior Engineer

Paddy Curran joins the GDG team as a SeniorGeotechnical Engineer having previously workedfor Atkins in London, Holcim in Australia andFehily Timoney & Company in Ireland. Paddy is aChartered Engineer and a Registered GroundEngineering Professional (RoGEP) with theInstitution of Civil Engineers. Paddy’s projectexperience includes input into project appraisal,feasibility studies, planning applications, siteinvestigation, detailed design, constructionsupervision and expert witness reports forjudicial proceedings. Paddy has worked on anumber of large projects including M25 SmartMotorway, Rooks Nest Landslide Stabilisationand Wylfa Nuclear Power Station.

Paddy CurranSenior Engineer

Senior Engineer William Brown joins GDG fromMcLaughlin & Harvey, having spent 2 years in theMarine Renewables team successfully managingthe SR2000 foundation installation project withScotrenewables Tidal Power. Previous to thisWilliam has worked for over 7 years for RPS intheir UK Ports & Harbours design team in Belfast,delivering a wide range of projects covering theareas of planning, design, tender, constructionand site supervision for many clients in both thepublic and private sectors. William heads up thenew office in Belfast for GDG, from where we

seek to strengthen our relationship with manyNorthern Irish clients as well as trading fromhere throughout the UK.

Darren KellyGeotechnical Engineer

Darren Kelly joins Gavin & DohertyGeosolution’s Edinburgh office fromWSP|Parsons Brinckerhoff in Manchester. Hereturns to Edinburgh having completed a PhD atEdinburgh Napier University using advancedtriaxial testing techniques to research theeffects of particle loss on the mechanicalbehaviour of soil. Following his PhD he spent 2years working with WSP|PB’s bridges andground engineering team working mainly onhighways and heavy rail projects. Hecollaborated with a number of colleagues…

NEW APPOINTMENTS Continued


from offices throughout the UK while workingon the East-West Rail project where his workincluded supervision of GI, writing of GI reports,and development of slope stability solutions. Healso produced Eurocode 7 compliant designcalculations for overhead line pylon foundationfor inclusion in National Grid’s revisedstandards.

Kevin Murphy joins Gavin & DohertyGeosolutions as a Geologist/Hydrogeologist.Kevin recently graduated from UniversityCollege Cork with a BSc Hons degree inGeology. Kevin completed his thesis on the Isleof Kerrera in Scotland, which involvedextensive geological mapping, and associateddeep crustal structural analysis as well as thedevelopment of a palaeoevnironmentaldepositional model for Devonian sediments.Kevin has worked as a field geologist with theGeological Survey of Ireland on their TellusProject and has gained experience inengineering geology through Arup & IGSL.

Kevin MurphyGeologist/Hydrogeologist

Danny GoldenSenior Engineer

Clare BrennanGeotechnical Engineer

Anna MusialGeotechnical Engineer

Anna Musail joins Gavin & DohertyGeosolutions as a Geotechnical Engineer. Forthe last few years Anna has been living inUnited Kingdom, where recently she graduatedfrom Geotechnical Engineering MSc at TheUniversity of Dundee. Prior to the MSc courseAnna was working as a Utility Surveyor. Duringthat time she was involved in variousconstruction projects, like at Heathrow andUK`s Ministry of Defence sites.

Danny Golden joins Gavin & DohertyGeosolutions as a Senior Engineer. He’spreviously worked in various organisationsfrom where he brings diverse knowledge andskills. He has experience across the marine,heavy civils and energy industries, withparticular focus on the marine renewableenergy sector. He has extensive experience as

Client Representative Engineer, DesignEngineer and Project Manager.

Clare Brennan joins Gavin & Doherty’sGeosolutions’ Belfast office as a GeotechnicalEngineer. She has five years’ experience inGeotechnical Engineering consultancy and oneyear experience in Civil Engineeringcontracting. She has worked on landdevelopment projects, commercial structuralprojects, and civil infrastructure projects,including geotechnical design for bridges,railways and sewerage treatment plants.

GDG Events

Summer is now over but GDG didn’t miss the opportunity to enjoy the weather and to celebratethe company’s recent project successes.

On the 15th of July, GDG’s team gathered together for a relaxing afternoon BBQ at the penthousein the Spencer Hotel, which provided stunning views over the river Liffey.

Most of the crew were present and it provided a great opportunity for the most recent employeesto integrate with the rest of the team and for everybody to take a break from the busy officeroutine.

During the summer months, five new employees have joined the team, three Dublin basedengineers, one designer in the Edinburgh office and an administrative assistant.


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