Factory prefabricated construction method for immersed tube joints

The invention discloses a factory prefabricated construction method for immersed tube joints. The method is characterized in that a steel bar binding area, a tube joint pouring area and 2-4 one-time outfitting areas are arranged on a construction site, an immersed tube joint bottom plate and a side wall steel reinforcement cage are bound and formed in the steel bar binding area and then transferred to the tube joint pouring area through a hydraulic traveling car and a steel bar binding moving trolley, full-section integral mass concrete sequential pouring construction is conducted on a plurality of pouring sections in the tube joint pouring area, and the concrete is moved from the tube joint pouring area to a primary outfitting area by adopting the hydraulic traveling car for subsequent construction after the concrete reaches the strength. Compared with traditional dry dock tube joint prefabricated construction, factory prefabricated construction of the method has the advantages that interval-free flow constr