Construction tolerance matching method for butt joint position of lower structure and upper module of ocean platform

The invention discloses a construction tolerance matching method for butt joint positions of a lower structure and an upper module of an ocean platform. The construction tolerance matching method for the butt joint positions of the lower structure and the upper module of the ocean platform comprises the following steps that S1, construction tolerance requirements of the lower structure and the upper module are determined; s2, an annular plate at the butt joint position of the upper module is holed, and the size of a hole is slightly smaller than the diameter of a stand column; s3, before the stand columns are inserted, dimension data of the butt joint positions of the upper module and the lower structure are obtained through measurement; s4, comparing and adjusting the size data of the lower structure and the theoretical position of the upper block stand column; s5, according to the relative relation determined in the step S4, determining the position of the upper module inserted with the stand column, and re