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10月9日,潍宿高铁跨京杭大运河特大桥施工现场,工人开展拱肋左幅合龙段吊装作业。该大桥采用(80+300+80)米下承式钢桁梁拱桥设计,主跨300米一孔跨越京杭大运河,是潍宿高铁江苏段技术难度最高、施工工艺最复杂的控制性节点工程。(陆启辉 陈玉 摄)
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