Pushing Boundaries, Delivering Solutions

Offshore Geoscience and Geotechnical Engineering Consultancy for the Renewable Energy industry

Feasibility EngineeringGeotechnical EngineeringFoundation Design - Extensive design experience at all project stages, working to all relevant design standards/coded and developing new methods for all foundation types including novel hybrid foundations.Advanced Numerical Analysis - Engineers expert at assessing complex scenarios such as soil-structure interaction, seismic and cyclic behaviour and plough performance.

Research and DevelopmentSoftware - OPILE pile design, CAISSON suction can design, JACA jackup leg penetration, PILEDEV pile deviation analysis, VHM mudmat design.Committees and Research - API RP2 GEO/ISO19901-4 Foundations, API RP2SK/ISO19901-7 Anchors and Moorings, ISO19905-1 Jackups, SUT OSIG. Probabilistic design, cyclic loading effects for piles and suction caissons, Dynamic FEA for interpretation of dynamic pile tests.

Our Services

Desk Study & Survey ManagementDesk Study - Experienced at identifying and mitigating risk at the most cost-effective stage, immediately increasing project value.Survey Management - Onshore and offshore staff experienced in the delivery of efficient and economic geophysical and geotechnical survey results.

Data Management & InterpretationData Management & GIS - Combining the latest data management, GIS software and engineering expertise to maximise data value throughout the project life-cycle. Interpretative Reporting - Decades of experience in geophysics and geotechnical data integration and reporting to develop geological models and to manage seabed and near-shore risk for engineering design.

Subsea Cables Construction, Operations and Maintenance

Asset ManagementTechnical Due Diligence - Services include design review, expert witness, compliance and risk assessment as part of the certification or capital raising process.

Operations & Maintenance - Service support to efficient operations through foundation performance review, geotechnical remediation design, GIS modelling and post-installation survey.

Cable Engineering and Trenching Routing and Risk - At the forefront of cable engineering and planning services. Route corridor selection and refinement, seabed risk management and bespoke, targeted application of CBRA guidance. Development and supply of route position lists (RPL) and alignment chart production.Trenching and Burial - Industry leading experience in development of trencher performance models to determine burial potential/assessment, trenching equipment suitability, equipment optimisation, performance assessment and forensic studies. Attendance offshore providing technical oversight of trenching and installation operations.

Research and Development Modelling - Trencher design, optimisation and performance modelling.Committees and Research - Carbon Trust Burial Protection Guidance, Subsea Cables UK.

Installation supportInstallation Analysis - Experts in leg penetration analysis, pile drivability and fatigue assessment and suction pile installation and extraction.

Pile Driving Monitoring - In excess of 15 years experience undertaking onshore and offshore pile dynamic load testing and monitoring pile tip buckling risk during driving.

Pushing Boundaries, Delivering Solutions

Enabling successful, cost effective project delivery by managing seabed risk and solving technical challenges

Cathie AssociatesBrussels • Paris • Newcastle • London • Hamburg • Milan

www.cathie-associates.com

Cathie Associates are the leading independant specialists in offshore geoscience and geotechnical engineering.

We combine specialist knowledge and software to deliver survey, geophysical and geotechnical engineering solutions responsively.

We can assist at all project stages from feasibility to decommissioning.

Pushing BoundariesDelivering Solutions