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Offshore Geotechnics

🌊 Offshore Geotechnics

Offshore geotechnics deals with the investigation of soil properties on seabeds and ocean floors, as well as the development of design and engineering solutions for structures to be built offshore. This discipline combines classical geotechnical engineering principles with marine-specific conditions such as waves, currents, seabed morphology, and soil structure.

📌 Our Fields of Work

1. Offshore Structure Foundations

  • Fixed Foundations: Monopile, jacket, tripod, gravity base systems

  • Floating Systems: Semi-submersible, spar, TLP platform foundations

  • Suction Caisson and Pile Foundations: Low-noise, fast-installation solutions for deep-sea projects

🌬 2. Offshore Wind Turbine Foundations

  • Fixed-bottom turbine foundations at depths of 0–60 m

  • Floating turbine mooring systems at depths of 60–300+ m

  • Design of helical piles, plate anchors, suction caissons

🛢 3. Oil and Gas Platforms

  • Jacket platform pile foundation designs

  • FPSO (Floating Production Storage and Offloading) mooring systems

🔌 4. Subsea Pipelines and Cables

  • Geotechnical surveys for pipeline/cable routes

  • Trenching, burial, and protection designs

  • Stability and scour protection measures

🧪 5. Soil Investigation and Research

  • Field: CPTu, SPT, seabed sampling, geophysical surveys

  • Laboratory: Direct shear, triaxial compression, consolidation tests

  • Numerical Modeling: PLAXIS 3D, FLAC3D analyses

6. Soil Problems and Risk Analysis

  • Liquefaction, settlement, and bearing capacity failure analyses

  • Erosion prevention due to wave/current action

  • Earthquake and dynamic soil response analyses

Poisson Geotechnics

Other Services

Other Services Detailed Information

Geotechnical Report

Geotechnical Report

Geotechnical reports are prepared based on the results of soil investigations for construction projects. Factors such

Ground Improvement (Jet Grout – Fore Pile)

Ground Improvement (Jet Grout – Fore Pile)

Soils with insufficient bearing capacity, prone to settlement or liquefaction are improved using methods such as Jet

PIT (Pile Integrity Test) and Pile Core Test

PIT (Pile Integrity Test) and Pile Core Test

The continuity, strength and internal integrity of piles are checked using the PIT test. Core tests are performed to

Field-Specific Behaviour Analysis

Field-Specific Behaviour Analysis

Not every ground reacts the same way to every structure. Through site-specific analyses, engineering data that is spe

Excavation and Support Structures

Excavation and Support Structures

To ensure stability in deep excavations, support structures such as pile-supported shoring systems, anchored walls, a

Site Investigation

Site Investigation

Soil profiles and geological formations are determined based on analyses conducted in the field using drilling, SPT,

Consulting

Consulting

We offer consulting services tailored to the needs of your geotechnical engineering project. We are with you every st