Offshore Wind Turbine Farms

(Update: I've learned that these thing are supposed to be called wind turbines instead of windmills. So I fixed the title, but I can't take the time needed to fix all of the text.)

I have a high-speed internet connection, so I loose track of how big some posts grow. I noticed the Building Windmills Farms post is getting a lot of pictures, so I thought I'd start another for offshore wind farms.

Adnan Najem posted several pictures with the comment: "Did any one have worked in wind-farm offshore-construction site ?
this is a deep-sea anchor-pilling projects as shown in follow pictures ..."

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[Boats that can jack themselves up on three pipes.]

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type of wind-turbine-towers foundations are Shallow and Deep. Top_Ground and Beneath_sea-beds. Any type of sub-structure (deep-foundation) will depends directly on the Soil-bearing-capacity and in second part due-to Wind-Uplift forces and sea-wave cyclic loadings

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Did you worked for (much more common wind-tower above hard-rock-bed) Tension ANCHOR-PILE & grouting process ?

1 of 12 photos posted by Jelco Stouthandel Photography

The Liebherr LR 11350 from the dutch based company Mammoet assembling the third of 24 wind turbines placed on the IJsselmeer between Lelystad and Urk, following the shoreline. 

Lifting the 116t weighing drive-train and hub together in one lift using 144 meter main boom with derrick to a height of around 120 meters, a spectacular operation! When finishing this lift, the blades can be attached and the crane can move to the next wind turbine to assemble.