Ground improvements at Granville Harbour Windfarm

David Raftery

Menard have recently completed the wind turbine foundation works at Granville Harbour Windfarm, utilising their specialist Ground Improvement techniques to support 27 turbines. The works involved utilisation of the Controlled Modulus Column (CMC) technique. The presentation will follow the design process, including the impact of potentially collapsible soils identified during the geotechnical investigation, and finish with the installation and onsite verification for the work. An outline of the talk is given below.

• Introduction to Menard
• Introduction to the Granville Harbour Windfarm including
  • Overview of project
  • Ground conditions onsite
  • Problems encountered
• Design Solutions
  • Why the CMC technique was proposed
  • High level design process
  • Outcome of design
• Construction aspects
  • Installation
  • Onsite verification

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