What are the construction principles of bridge precast yards?

In principle, the bridge precast yard is not allowed to be set up within the red line of the roadbed. If necessary, it should be set up in a section of the roadbed that has reached the elevation and must be approved by the supervisor. 2 The various production and living facilities in the prefabricated factory should be reasonably laid out, all kinds of machinery and equipment should be placed in an orderly manner, and the waterproof and drainage systems should be perfect. The roads in the site must be hardened to ensure smooth roads. The prefabricated factory should set up project introduction boards, construction site layout plans, safe and civilized construction slogans, etc. 3 Before the construction of the gantry crane track foundation, the foundation bearing capacity of the foundation must be tested, and the foundation width and thickness and reasonable reinforcement must be determined based on reasonable load weight calculations during construction to ensure a stable foundation. 4. The storage area for beams should be flat and compacted, and drainage ditches should be dug around to ensure that there is no accumulation of water in the area. The beam storage site must be laid out in advance. The beam storage site must be leveled and compacted, and drainage must be smooth to prevent foundation subsidence and beam plate breakage.