| 思贤窖特大桥承台大体积混凝土施工控制 |
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| 引用本文： | 刘兵伟.思贤窖特大桥承台大体积混凝土施工控制[J].石家庄铁道学院学报,2011,24(1):53-57. |
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| 作者姓名： | 刘兵伟 |
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| 作者单位： | 中交第四航务工程局第三工程公司,广东湛江,524000 |
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| 摘 要： | 根据思贤窖特大桥主墩承台施工,分别从施工组织、混凝土浇注、混凝土养护等方面介绍了大体积混凝土的施工。详细介绍了冷却水管安装和测温探头的布置,并从调节混凝土配合比和外加剂使用以及采用冷却测温系统指导现场大体积混凝土施工养护等方面,分析了如何控制因水化热等引起的大体积混凝土内部与表层、表层与外部环境间的温差,防止温度裂缝的产生。
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| 关 键 词： | 大体积混凝土 冷却测温系统 水化热 温度裂缝 |
Construction Control of Massive Concrete for Pile Caps of Sixianjiao Super-large Bridge |
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| Liu Bingwei.Construction Control of Massive Concrete for Pile Caps of Sixianjiao Super-large Bridge[J].Journal of Shijiazhuang Railway Institute,2011,24(1):53-57. |
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| Authors: | Liu Bingwei |
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| Institution: | Liu Bingwei(The 3rd Engineering Company.of CCC Fourth Harbor Engineering Corporation Ltd,Zhanjiang 524000,China) |
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| Abstract: | According to the construction of main Pier Pile Caps of Sixianjiao super-large bridge,the construction method of mass concrete is briefly introduced in this paper from construction organization,concrete casting,concrete curing and other aspects.In order to prevent the cracks,based on the design of mix proportion,admixture and the cooling and temperature measuring system,the paper minutely analyses the construction and curing of concrete on the spot,including control of temperature difference caused from hydration heat between internal concrete and surface,between surface and external environment,etc. |
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| Keywords: | massive concrete cooling and temperature measuring system hydration heat temperature cracks |
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