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3. Loads transmitted to the ground
3.1 Loads applied to the ground in the absence of wind
The calculations presented in this paragraph concern a wind turbine not subjected to wind loads.
The weight of the wind turbine (F VE ) is usually between 200 and 450 T.
The diameter of the footings varies from 16 m for wind turbines of around 2 MW to almost 25 m for the most powerful, i.e. surfaces of between 200 and 400 m 2 , leading to an average vertical surcharge of between 10 and 20 kPa.
The footing, 2.5 to 3.5 m high, combines heavily reinforced concrete (density 2.5) with an overlying ballast backfill (density between 1.8 and 2.0). The average density of the footing...
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Loads transmitted to the ground
Site conditions and groundwater impact
Bibliography
Websites
Fédération de l'Energie Eolienne (FEE) website
https://fee.asso.fr/pub/observatoire-de-leolien-2019/
Geological, hydrogeological and natural hazard information websites
Standards and norms
- "Wind turbines – Part 1: Design requirements" - Norme NF EN 61 400-1 - (3e édition)
- "Geotechnical engineering assignments – Classification and specifications", - Norme NF P 94 500 - de novembre 2013
- "Geotechnical calculations – Part 1: General rules " - Eurocode 7 (NF EN 1997) - de juin 2005
- Calcul des structures pour leur résistance aux séismes - Eurocode 8 (NF EN 1998) -
- Fondations...
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