Method for fastening and optimizing center hob of composite cutterhead of earth pressure balance shield machine

The invention discloses a method for fastening and optimizing a center hob of a composite cutterhead of an earth pressure balance shield machine. The method comprises the following steps that (1) a fixed cover plate is installed; (2) a red copper sheet is added; (3) the angle of a center hob inclined block is adjusted; (4) the cover plate is fixed; (5) a cutter is checked; (6) the state of the cutter is observed; (7) the cover plate is installed; (8) a pressing plate is installed; (9) a red copper sheet is added and plugged; and (10) the deformation condition of the copper sheet is observed. The invention belongs to the technical field of shield construction, particularly relates to the method for ensuring that the cutter is mounted in place and is not easy to loosen during cutter mounting. According to the method, a mounting method for dispersing stress points of the cutter to a cutter box is provided, and a corresponding observation and analysis method is provided so that even if the cutter has the phenomen