Repairing an existing cistern
The base of an old cistern may have to be replaced. In this case, jacking units are erected externally. When the base plate has been cut free from the shell ring, the cistern is lifted to a sufficient height and the base plate is replaced. The cistern can then be lowered exactly in position again.
This method is also used to lift cisterns in order to repair or reinforce the foundation. Cistern which tilt as a result of uneven settling can also be lifted in this manner and straightened.
The lifiting trestles must be provided with a stable base for all of these operations.
Increasing the cistern capacity
The Bygging-Uddemann method makes it easy to increase the storage capacity of an existing cistern. An increase in capacity means that the bottom of the cistern must be provided with additional shell rings.
In some cases, special lifting trestles in which the jacks are placed at the top, are used depending on the size and weight of the cistern.
Lift capacity: 12 – 42 tons
Moving steel cisterns
Bygging-Uddemann jacks can be used to move cisterns horizontally for longer or shorter distances.