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工程概况南钦铁路NQ1标段正线全长63.693 km,引入南宁枢纽的支线长度11.233 km,共有43座桥梁、8座隧道和2个越行车站。南软铁路等级为客货共用双线铁路,设计最高速度250 km/h,正线线间距为4.6m。NQ1标段设有三岸邕江特大桥主桥钢桁拱,不能承载运架车驮箱通过。因此,本标段共设2个预制梁场,1#预制梁场设在D2K4+700处,承担101孔箱梁预制架设任务;2#预制梁场设在D2K21+500地段,承担348孔箱梁预制架设任务。
Project Overview Nanqin Railway NQ1 section of the total length of 63.693 km, the introduction of the Nanning hub extension length of 11.233 km, a total of 43 bridges, 8 tunnels and 2 more transit stations. South soft railway level for passenger and freight shared two-lane railway, the design maximum speed of 250 km / h, the line spacing of 4.6m. NQ1 tenders with the three sides of the main bridge steel arch truss arch bridge, can not carry the carrier cart box through. Therefore, there are totally 2 prefabricated beam fields in this tenderer. The # 1 prefabricated beam field is set at D2K4 + 700 and undertakes the prefabrication task of 101-hole box girder. The 2 # prefabricated beam field is located at D2K21 + 500 and takes 348 holes Beam prefabricated erection task.