Tower drum section, tower drum and tower drum assembling method

The invention provides a tower drum section, a tower drum and a tower drum assembling method, and relates to the technical field of wind power. The tower drum comprises a plurality of tower drum sections which are connected in the axial direction. The tower drum assembling method comprises the following steps of assembling the tower drum sections and assembling the tower drum. Longitudinal connecting pieces and transverse connecting pieces are welded to the inner wall of the tower drum, each longitudinal connecting piece comprises two longitudinal flanges, and gaps are reserved between the longitudinal flanges and the cutting edges of the tower drum fragments; the transverse connecting piece comprises an annular flange; the longitudinal flanges of the adjacent tower drum fragments are connected through fasteners, and supporting pieces are filled between the two longitudinal flanges to form a plurality of tower drum sections; and the annular flanges between the adjacent tower drum sections are connected throug