One-time pouring forming construction device and method for large-section special-shaped structure

The invention provides a one-time pouring forming construction device and method for a large-section special-shaped structure. The one-time pouring forming construction device comprises a trolley track laid at a position of an aerated special-shaped structure; the trolley track supports a side wall lining trolley for side wall lining pouring, a top arch lining trolley for top arch pouring is arranged at the top of the side wall lining trolley. A special-shaped steel moulding plate blocks the position at which the aerator special-shaped structure is located and the position of a special-shapedside wall which is not coated with the bottom of a panel of the side wall lining trolley and a bottom lining line. The construction method effectively solves the problem that the trolley cannot be used for lining due to gradual change of the vertical height of the space caused by the inconsistency between the gradient of the top arch of a large cavern and the gradient of the lining of a bottom plate. The construction meth