APPARATUS AND METHODS FOR INSTALLING A SUBSTRUCTURE
There is described apparatus for use in installing a substructure, and related methods. In embodiments of the invention, the apparatus comprises a positioning device attached to a leg of the substructure. The substructure comprises at least one leg to be mounted to at least one base, and the positioning device comprising at least one jack for supporting the leg upon the base, such that at least part of the weight of the substructure is supported on the base via the jack. In this way, relative movement between the leg and the base can be reduced, to allow permanent mounting of the leg to the base for example by using a curable material.