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Article | REF: C262 V1

Onshore wind turbine foundations

Authors: Eric ANTOINET, Maxime MARTHE

Publication date: November 10, 2020

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5. Geotechnical investigations

In order to assess the geotechnical site conditions and geological risks, and to define the characteristic values of the geotechnical design parameters, a geotechnical investigation program at the site of each wind turbine in a wind farm is a prerequisite for the pre-project (G2-AVP) and then project (G2-PRO) geotechnical design missions, as defined in standard NF P 94 500 of November 2013.

  • The definition of the geotechnical investigation campaign is based on prior bibliographical knowledge of the site:

    • BRGM 1:50,000 geological map;

    • BRGM hydrogeological map;

    • public mapping (clay/cavity/water table rise, seismicity, etc.);

    • boreholes available locally in the BSS subsoil database, maintained by...

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