Line and slope adjusting method for shield tunnel

The invention discloses a line and slope adjusting method for a shield tunnel, and relates to the technical field of tunnel engineering, and the method comprises the steps: obtaining a first shield center point coordinate and a second shield center point coordinate, so as to calculate a radian value between the first shield center point and the second shield center point; the actual offset of the tunnel center line and the line center line and the limit allowable error value of the plane are obtained, and a plane bread curve is calculated according to the actual offset, the limit allowable error value, the first shield center point coordinate and the radian value; obtaining a section mileage value of a longitudinal section, an actual top measuring point elevation, an actual bottom measuring point elevation, an allowable minimum height of contact network installation and an allowable minimum height of a track structure, and calculating a longitudinal section envelope line according to the allowable minimum hei