RECOA.EU - Renewable Construction Academy

Site survey play a vital role in the development of an offshore wind farm. These surveys provide a detailed understanding of the seabed conditions, which is crucial for the design and construction of both cables and foundations for wind turbines and substations.

The geophysical- and geotechnical site surveys will identify underwater obstacles, wrecks, and potential hazards such as boulder and shallow gas that could impact the installation and operation of the wind farm. 

Understanding these features is critical for safe navigation of vessels during construction and maintenance. By analysing the geological features of the site, including soil and rock composition and sediment layering, engineers can determine cable routes and the most suitable foundation types and construction methods.This knowledge helps mitigate risks associated with soil stability, such as subsidence or liquefaction, and ensures the structural integrity and longevity of the wind turbines and cables.

 In summary, a well-executed geophysical and geotechnical site survey campaign is critical for reducing risks, optimising design and operations, and ensuring the success and sustainability of offshore wind projects.

What can you expect from this course?

The module is broken down into 4 chapters, each consisting of 6-9 individual lessons followed by questionnaires to test the student knowledge. Each chapter will include visuals of equipment, data examples and exercises focussed on student engagement. 

While the module is developed in the context of site surveying for offshore wind installations, the survey techniques discussed are also frequently used for other types of marine infrastructure projects, such as bridges or harbour developments and mapping of aggregates in the marine environment.

All chapters are designed to provide students with a basic understanding of the subjects discussed and the practical aspects of site survey planning, sensors and equipment and reporting, while not diving into the theoretical aspects or technical background, as this will be subjects for more specialised modules. 

Upon completion of the course, the students will be able to understand the basic principles of scoping a site survey campaign, why and when specific geophysical sensors or geotechnical equipment is used, and how the acquired data is processed, reported and used in the design process.