一、场地布置沪宁复线某桥4孔23.8m预应力钢筋混凝土梁,是上海铁路局工程总队第三工程大队利用拆装式桁梁杆件拼装的架桥机架设的。见照片1。根据当时线路条件,桥址距车站较远,距老线有80m,而新线尚未铺设,全部料具均由水路和公路运到工地。同时,桥台之后的土方 First, the site layout Shanghai-Nanjing double-track a hole 4 holes 23.8m prestressed concrete beams, the Shanghai Engineering Bureau of the Third Engineering Corps brigade using removable truss girder pieces of the bridge frame set up. See photo 1. According to the current line conditions, the bridge site away from the station, 80 meters from the old line, while the new line has not been laid, all the materials are transported by water and road to the site. At the same time, earthworks after the abutment