Construction of Railroad Bridges
Whether it is a pedestrian bridge to allow people to cross a railway, a railway bridge that carries trains over a river, highway, or other lines or a road bridge for cars, etc. can go through a line, you will find them everywhere.
Substructures below live tracks had traditionally been built on cofferdams spanned by step girders, but beginning in the 1960s pipe hoisting techniques were adapted to form such substructures. Pile-driven foundations have been increasingly adopted on each side of the railway, and since the 1970s, integral bridges or frame frames have been installed by sliding, conveyorized, jacking, or open-cut pulling.