| 重庆鱼嘴长江大桥北锚碇基础施工及温控技术 |
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| 引用本文： | 朱云翔,李德坤,李芳军,邓波.重庆鱼嘴长江大桥北锚碇基础施工及温控技术[J].桥梁建设,2007(A01):116-120,124. |
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| 作者姓名： | 朱云翔 李德坤 李芳军 邓波 |
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| 作者单位： | [1]中铁大桥局股份有限公司重庆分公司,重庆400020 [2]武汉港湾工程设计研究院有限公司,湖北武汉430061 |
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| 摘 要： | 重庆鱼嘴长江大桥北锚为重力式锚碇，采用扩大基础，基础体积53000m^3，施工期间为夏季最高温度，施工及温控技术要求高。采用仿真分析，优化分层厚度、施工方案，进行了温控设计、配合比优化、施工监控、成果分析等，混凝土未出现有害裂缝，保证了锚碇工程的使用耐久性。
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| 关 键 词： | 悬索桥 锚碇 基础 大体积混凝土 温度裂缝 控制 施工工艺 |
| 文章编号： | 1003-4722（2007）S1-0116-05 |
| 修稿时间： | 2007-03-27 |
Construction and Temperature Control Techniques for Foundation of North Anchorage of Yuzui Changjiang River Bridge in Chongqing |
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| ZHU Yun-xiang , LI De-kun , LI Fang-jun , DENG Bo.Construction and Temperature Control Techniques for Foundation of North Anchorage of Yuzui Changjiang River Bridge in Chongqing[J].Bridge Construction,2007(A01):116-120,124. |
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| Authors: | ZHU Yun-xiang LI De-kun LI Fang-jun DENG Bo |
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| Institution: | 1. Chongqing Company, China Zhongtie Major Bridge Engineering, Inc., Chongqing 400020, China; 2. Wuhan Harbor Engineering Design and Research Institute Co., Ltd., Wuhan 430061, China |
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| Abstract: | The north anchorage of Yuzui Changjiang River Bridge in Chongqing is a gravity type anchorage resting on spread foundation with its volume up to 53 000 m^3. The construction of the foundation happened to take place at the highest temperature time in summer and the techniques for the construction and temperature control were therefore demanding. For the construction of the foundation, the simulation analysis method was used to optimize the casting layer thickness and construction schemes, and the temperature control design, mix proportioning optimization, construction monitoring and monitoring result analysis were made as well. As a consequence, cracks did not occur in the concrete of the foundation and the service durability of the anchorage has been ensured. |
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| Keywords: | suspension bridge anchorage foundation massive concrete temperature crack control construction technology |
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