| 润扬长江大桥南锚碇超大体积混凝土温控技术 |
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| 引用本文： | 刘家彬,郭正兴,韦世国,赵有明,刘加平. 润扬长江大桥南锚碇超大体积混凝土温控技术[J]. 建筑技术, 2003, 34(1): 41-43 |
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| 作者姓名： | 刘家彬 郭正兴 韦世国 赵有明 刘加平 |
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| 作者单位： | 东南大学土木学院,210096 |
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| 摘 要： | 润扬长江公路大桥南锚碇基础为混凝土重力式结构，体积巨大，基坑采用冻结法止水。大体积混凝土配合比设计中主要考虑降低水化热，以减小混凝土的绝热温升，分层，分块施工大体积混凝土，并适当埋设冷却水管，控制浇筑温度，采用实时温度跟踪监测，以确保大体积混凝土施工质量。
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| 关 键 词： | 大体积混凝土 锚碇 温度控制 冻结法 |
| 文章编号： | 1000-4726(2003)01-0041-03 |
| 修稿时间： | 2002-08-16 |
TEMPERATURE CONTROL TECHNOLOGY FOR SUPER MASS CONCRETING OF SOUTHERN ANCHORING FOUNDATION OF RUNYANG SUSPENSION BRIDGE ACROSS YANGTSE RIVER |
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| LIU Jiabin GUO Zhengxing WEI Shiguo ZHAO Youming LIU Jiaping. TEMPERATURE CONTROL TECHNOLOGY FOR SUPER MASS CONCRETING OF SOUTHERN ANCHORING FOUNDATION OF RUNYANG SUSPENSION BRIDGE ACROSS YANGTSE RIVER[J]. Architecture Technology, 2003, 34(1): 41-43 |
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| Authors: | LIU Jiabin GUO Zhengxing WEI Shiguo ZHAO Youming LIU Jiaping |
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| Affiliation: | LIU Jiabin GUO Zhengxing WEI Shiguo ZHAO Youming LIU Jiaping |
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| Abstract: | Southern anchoring foundation of RunYang suspension bridge across Yangtse River is a tremendous gravity structure of con-crete.Freezing method was adopted for waterproofing around the foun-dation pit.What considered most in designing mix proportion for mass con creting was decreasing heat of hydration so as to lower the tempera-ture in heat insulation conditions.In order to secure the quality of mass con creting,the concreting was processed layer by layer and section by section.A number of cooling pipes were embedded to keep controlling and moni toring concrete temperature. |
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| Keywords: | mass concrete anchoring temperature control freezing method |
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