Vibrocompaction: new record of depth
The largest onshore windmill with 7.5 MW is installed on top of an old brown coal dump area. A combination of vibrocompaction up to 68 m deep and additional stone columns 20 m deep were installed night and days.
This is a new record of depth and improvement quality in line with the stringent requirements of less than 4 cm differential settlement with up to 68 m of loose material above the natural soil.


The Menard Group develops foundation solutions based on ground improvement and reinforcement technologies. Its treatments eliminate the need for the deep foundations traditionally used to support surface structures.
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