BRABANT FIGHT AGAINST WATER
These
problems could all be overlooked before building the weir and solutions were
sought.
The
first problem was solved by building the weir in the docks. During the works
there would be no hinder for the shipping.
The
second problem was solved cleverly. The adaptation of the shape of the wall to
the seaside was slanting and skirts were put on the bottom of the turning wall.
The
other leaks in
the Measlandkering
As usual everything
started with building a parking dock and this was done because later on the big
parts of the Measlandkering could be transported onto the dock. And then they
can put it all together.
At first the turning wall
is put together in the dock like a jigsaw puzzle. It's fixed together with two
arms: one arm weighs twice as much as the Eiffel tower. This arms cost many
hours to make. Then they were put together in the building place of the
Measlandkering, this wasn´t a whole lot of work. The welding however did take a
lot of time.
Each weld needed ca. 160
hours work. And if the welding wasn't good the whole weir could be destroyed.
Because of that the weirs were welded in special tents where the most ideal
situation for welding was created.
There are more parts
important for the Measlandkering, the hingeboll for instance makes the closing
and opening of the weir possible. The hingeboll has a diameter of 10 meter and
it's the biggest in the world. The building of a great hingeboll wasn't easy,
but the biggest challenge was that the deviation should not be more than 0,5 mm.
The hingeboll, just like the human shoulder, can turn in three ways. This is necessary to follow all the movement of the doors both horizontally (by sailing out) and vertically (by sinking down) when the doors open and close. The power on the doors can by work arm and hingeboll at least be carried off to a colossal triangle concrete block, the foundation of the hingeboll.