Pioneering Percussion Driven Earth Anchors (PDEA®) for over 35 Years


Geotechnical Services

Internal Technical Guidance & Support

With over 35 years’ experience and thousands of successful projects worldwide we offer pre-contract site evaluation and anchor testing together with on-site training and support. In addition, we are able to provide real time technical guidance at all stages of the design and installation process allowing for greater engineering confidence.

As part of our commitment to offer a complete package, a non-chargeable Conceptual Proposal outlining possible anchoring solutions/specifications, suitable for your project, can be provided complying to relevant standards. We understand that each project is unique and suggest that the design of every project is approved by a qualified engineer.

To assist we are also able to offer a full Indemnified Design service through our geotechnical consulting team & our partners (see below). These comprehensive designs, which are chargeable, are covered by Professional Indemnity Insurance.

Henwick Turnback, National Rail – UK

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Indemnified Design Service - Hawes Associates


Platipus have worked alongside Hawes Associates for over 30 years, across a wide range of projects.

Hawes Associates have a unique understanding of our anchoring solutions and their application, having successfully managed thousands of designs over the last 30 years. Working with Hawes Associates allows us to offer indemnified liability insurance up to £1million and adds an additional level of assurance when specifying for a project.

Their primary expertise includes:

  • Percussion Driven Earth Anchors (PDEA®)
  • Construction Dewatering
  • Flood Defence, Erosion Protection & Sea Defence
  • Construction and Renovation
  • Supervising Engineer under the Reservoirs Act Legislation

Skinnerburn Road Retaining Wall – Newcastle, UK

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OGI Groundwater Specialists & Platipus Collaboration

Platipus are proud to work in collaboration with OGI Groundwater Specialists in developing our expertise for projects in difficult ground conditions.

OGI has 27 years of experience solving complex groundwater and geotechnical problems, with the skills and experience to undertake risk based analysis to assess then mitigate the wider impact of groundwater control.

With a team of 13, OGI have one of the largest technical teams in the UK, primarily focused on delivering practical solutions and excellence in the field of Groundwater Engineering.

OGI Recognition & Awards


Key Areas of Expertise

OGI’s principal expertise presides in the field of groundwater control and management, the stabilisation of weak saturated slopes and bespoke groundwater modelling.

The key areas where OGI specialise are dewatering for deep excavations, ground strengthening design, retaining embankments, groundwater control, CAT 1,2 and 3 design checks and emergency diagnosis for failed slopes. OGI also have expertise in passive groundwater collection systems and pressure relief.


OGI Design Software

OGI utilise state of the art modelling technology on each and every project. These software packages include:


  • Plaxis 2D
  • SEEP/W
  • CVM10



OGI Documents

Download a selection of OGI documents here in PDF format (opens in new tab):