Geotechnical desk studies

  • Based on the following data:

  • published geological maps and reports

  • published technical papers related to a particular geological formation

  • boreholes logs from at or near the site

  • Our geotechnical desk studies will:

  • assess the likely ground conditions

  • develop a site geological model

  • derive preliminary design soil profiles/parameters

  • evaluate potential geohazards (such as mobile sediments).

Front-end engineering design (FEED) studies

The data for this is usually:

  • results from the Geotechnical Desk Study

  • site-specific metocean data

  • manufacturer-supplied wind loads

  • From these, we will:

  • assess the suitability of different foundation types (e.g. monopiles, concrete/steel gravity structures, steel tripods/jackets, suction caissons and guyed support structures)

  • give a preliminary estimate of sizes and costs

  • determine the required installation equipment e.g. pile hammers.

Support during geotechnical investigations and geophysical surveys

  • prepare Invitation to Tender documents, including Technical Specifications

  • develop Scope of Work

  • review tenders

  • supervise offshore fieldwork

  • specify onshore laboratory testing

  • review final reports

Interpretation of factual site investigation data

  • develop site geological model

  • derive design soil profiles/parameters

  • assess potential for local scour and global seabed movement

Support during onshore or offshore prototype pile testing

  • design and specify test programme

  • select contractor

  • supervise fieldwork

  • analyse / interpret results

  • develop new analytical methods

  • Prototype pile tests are sometimes used to investigate lateral load-displacement behaviour and/or pile driveability in unusual ground conditions.

Support during foundation design and construction

  • review tender submissions
  • review Design Basis
  • pile driveability studies
  • jack-up stability studies