Double production line and rapid prefabrication process of segmental beam

A double production line of a segmental beam, comprising two production machines and a track system provided on a construction ground;

• the production machine comprises a fixed end mold, two side molds, a bottom mold trolley, a middle internal mold trolley and two side internal mold trolley;
• the two side molds are positioned on two sides of the fixed end mold respectively, the fixed end mold and the two side molds together define a pouring position with an end opening, and the end openings of two pouring positions are arranged facing each other;
• the track system comprises a transverse track and a longitudinal track communicated with each other, both of the two pouring positions are positioned in an extension path of the transverse track, and the longitudinal track is positioned between two pouring positions;
• the bottom mold trolley is slidable in the track system;
• a middle groove and two side grooves run though the fixed end mold horizontally, the middle internal mold trolley penetrates through the middle groove and is inserted into the pouring position, the side internal mold trolley penetrates through the side groove and is inserted into the pouring position, and the end opening of the pouring position is closed via an end formwork;
• and, in either of the production machines, the fixed end mold, the two side molds, the bottom mold trolley, the middle internal mold trolley and the two side internal mold trolleys together define a pouring cavity in the pouring position;
• wherein the side internal mold trolley comprises a side trolley, a horizontal frame provided on an upper end of the side trolley and four side formwork components, and a length direction of the horizontal frame is in line with a sliding direction of the side trolley;
• four side formwork components are circumferentially distributed around the horizontal frame by taking a length direction of the horizontal frame as axis, and the horizontal frame is provided with a side driving member configured to drive the four side formwork components to gather together or depart from each other;
• and, when the four side formwork components depart from each other, the four side formwork components are spliced with each other to form a side internal mold.