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解惑“78m-78”-环球时报

平陆运河马道78m-78枢纽船闸主体单日混凝土浇筑量创新高

来源: 广州日报
2024-12-03 08:01:09

最佳回答

“78m-78”平陆运河马道78m-78枢纽船闸主体单日混凝土浇筑量创新高

  中新78m-78网南宁12月1日电 (陈沿佑)78m-78“平陆运河马道枢纽船闸主体11月30日单日预冷混凝土生产和浇筑量达到16409立方米,在同类单体工程中创新高。”广西平陆运河建设有限公司党委书记、董事长程耀飞12月1日介绍。

  平陆运河马道枢纽船闸主体近日封顶,并在11月30日进行混凝土浇筑。

图为11月30日平陆运河马道枢纽浇筑施工现场。陈沿佑 摄

  程耀飞介绍,当天浇筑现场使用了185台混凝土运输车辆运输(含日夜班),30台应急备用;26台套布料设备同时工作,9台套应急备用;约400名专业管理人员和2500名施工人员团结奋战,做足大体积混凝土温控等措施,全方位确保浇筑各环节的安全、质量、进度。

  据了解,平陆运河马道枢纽混凝土总浇筑方量为336万立方米,其中船闸主体混凝土设计总浇筑量为259万立方米。

  平陆运河马道枢纽项目部负责人黄海波介绍,针对施工进度、安全和质量,平陆运河建设管理团队制定了一整套方案。“在进度管理方面,我们根据项目实时进展,开展施工组织优化,还搭建智慧工地管理系统,实现4D进度模拟、进度可视化追踪、智慧化决策纠偏;在安全管理方面,以智能化手段对重点区域、重点设备进行主动预防和预测预警。”

  在浇筑施工过程中要如何确保混凝土的拌合和入仓效率和温控质量?程耀飞介绍,在混凝土拌合方面,项目部采用了7立方米强制性搅拌机,每小时可以生产800立方米预冷混凝土;在入仓方面,采用了履带式布料机与专用罐车相配合的先进工艺。

  “船闸主体需要浇筑的共有13个仓面,共布置了26条浇筑线路,每小时可浇筑700立方米混凝土。针对高温影响容易造成大体积混凝土开裂的问题,我们采用预冷混凝土工艺,在浇筑完成后采用冷水机组进行通水冷却,降低混凝土内部温度,并广泛应用大体积混凝土数字孪生智能温控系统,确保混凝土温控质量。”程耀飞说。

  据悉,截至11月28日,平陆运河累计完成投资约449.2亿元人民币,占工程概算的61.8%;累计完成土石方开挖约2.54亿立方米,占工程总量的80.7%;三大枢纽累计完成船闸主体混凝土浇筑约280.2万立方米,占设计总量47.9%。(完)

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