HYDRAULIC HEIGHT ADJUSTING APPARATUS FOR INSTALLING HEAVY WEIGHT OFFSHORE STRUCTURES

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hydraulic height adjusting device for installing a super heavy weight structure capable of securing a stable horizontal supporting force against a horizontal load of an upper structure. The present invention relates to a lower frame for a vehicle, which comprises a lower frame provided with a plurality of insertion portions which are installed in a transportation line and open to the upper side and a lower frame which is seated on the insertion portion of the lower frame and is extended and contracted in the vertical direction, The insertion portion is provided with a support guide which surrounds the hydraulic cylinder device in an annular shape and which is positioned between the inner wall of the insertion portion and the hydraulic cylinder device to resist tilting of the hydraulic cylinder device do.