
据中山市交通运输局消息,近日,历时40小时,深江铁路项目鸡鸦水道特大桥158号主墩下横梁浇筑顺利完成,标志着鸡鸦水道特大桥全面进入中塔柱施工阶段,项目建设迈向新阶段。
鸡鸦水道特大桥位于广东省中山市境内,跨越港口镇、民众街道两个镇街。桥梁跨越鸡鸦水道,桥址处鸡鸦水道宽390米,通航等级为Ⅱ级,通航净空12.5米。主桥采用混凝土梁和钢混凝土梁组合梁斜拉桥,主跨408米跨越鸡鸦水道,共计2个主墩和6个边墩,是深江铁路全线控制性工程。
鸡鸦水道特大桥下横梁高度6米,宽8.5米,长30.65米,为保障梁体与塔柱结构的连接稳定性,左右塔柱与下横梁同步浇筑9.45米高,共同构成“H”型空腔结构,一次整体浇筑约1700方混凝土,约等于680头亚洲象的重量。
据了解,此前,鸡鸦水道特大桥157号主墩下横梁已于7月2日浇筑完毕,此次158号主墩下横梁浇筑完成也标志着鸡鸦水道特大桥主墩下塔柱工序顺利完成,成功转入中塔柱施工工序。
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