Lake dredger/floating dredger, wet extraction? How long, etc.?
I'm interested in the gravel pits with suction dredgers/floating dredgers on them and I was wondering why some of them are vacuumed for a few years and others only for a few months. Does that mean the gravel pit is too deep or what is the reason for this?
You can often tell by the size. Some are really huge and others are given up when they are still quite small.
The structure is also different. We have two of these lakes where the ship is in the middle and you don't see any pipes; instead, they suddenly come out of the ground about 10 meters from the shore.
And most of the others have a tube that floats on the lake to the shore.
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Perhaps there is simply no gravel, sand, etc., according to what is being dismantled, more and then you don’t need to dismantle and possibly it will also budge too deep and further, would cost a lot.