Welcome to ABL Group
Longitude is the design and engineering arm of ABL Group - a global and independent consultancy delivering marine, energy, engineering and software solutions to drive safety and sustainability in renewables, maritime and oil & gas sectors. ABL Group operates across 43 countries worldwide.
Proper Marine
Longitude's division in Brazil - specialists in naval architecture and offshore engineering.
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ABL
The energy and marine consultants, delivering technical services to support offshore energy and maritime sectors at construction, operations, decommissioning and in marine casualty scenarios.
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AGR
Engineering consultancy, skills resourcing, survey and software provider, specialising in wells, subsurface, and marine operations.
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OWC
The renewable energy consultants - providing technical advisory, engineering and consulting for the commercial-scale development of renewable energy onshore and offshore.
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Geotechnical Design
Longitude provides specialist capabilities in geotechnical engineering and geoscience services, offering a comprehensive package of front-end project activities, design and analysis consultancy services, enabling us to mitigate ground risk at all stages of a project.
Our specialist engineers bring significant experience across all offshore energy sectors, including offshore Renewables’ projects.
Foundation Design
Our geotechnical design services are compliant with the latest regulatory guidance. We offer a bespoke service for our clients, providing all necessary studies for the mitigation of geotechnical risk.
- Basis of Design – including guidance on selecting the optimum foundation solution for a given set of conditions
- Concept, FEED and detailed geotechnical design of shallow and deep foundations
- Skirt penetration assessment for shallow bearing foundations
- Penetration resistance of suction installed piles
- Pile driving assessment considering up to date recommendations on calculation of resistance
- Pile driving hammer recommendations and efficiency optimisation
- Scour Assessment
- Liquefaction and seismic studies
- Settlement Assessment
- Pipeline stability
Construction and O&M
Our design services continue through to the later stages of a project to ensure sound geotechnical design throughout a projects lifecycle. Our services we offer our clients
- Recommendations and design of installation support requirements
- Back analysis of installation data
- Leg penetration analysis for vessel movements with V-H interaction and leg extraction assessment
- Anchor Penetration studies
- Scour protection studies
- Ongoing support for cable burial and protection
- Final decommissioning support
Key Contacts
Case Studies View All
Floating Wind Array Mooring Development
Longitude are actively working with suppliers and geotechnical consultancies to investigate the loads and behaviour of shared mooring foundations for floating wind arrays. Building on existing research with single floating…