| 水中圆形钢板桩围堰施工技术 |
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| 引用本文： | 乐早发.水中圆形钢板桩围堰施工技术[J].铁道建筑技术,2009(10):45-50. |
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| 作者姓名： | 乐早发 |
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| 作者单位： | 中铁十五局集团有限公司南京公司,南京,210019 |
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| 摘 要： | 南京长江隧道工程右汊大桥为独塔自锚式悬索桥，主塔基础（10号）在水中，为14φ2．5m钻孔桩，桩长87m，主塔承台为八角形，横桥向总宽度20．7m，顺桥向总宽度19．226m，厚5m。结合工程实际，主塔承台采用圆形钢板桩围堰施工，圆满完成了承台的施工。
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| 关 键 词： | 水中承台 圆形钢板桩 围檩 钢支撑 合龙 封底 |
Construction Technology of Round Steel Sheet Pile Cofferdam Underwater |
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| Le Zaofa.Construction Technology of Round Steel Sheet Pile Cofferdam Underwater[J].Railway Construction Technology,2009(10):45-50. |
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| Authors: | Le Zaofa |
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| Institution: | Le Zaofa (China Railway 15^th Bureau Group Co. Ltd. , Nanjing 210019, China) |
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| Abstract: | The right-branching bridge of Nanjing Yangtze River Tunnel is a self-anchored suspension bridge with single tower. The main tower base is in water with 14φ2.5 m bored piles and 87-meter piles. The main tower has an octagonal cap, whose cross-bridge width is 20.7 meters, cis-bridge width 19. 226 meters and thickness 5 meters. In light of engineering practice, a round steel sheet pile cofferdam was used in the main tower caps and the construction of pile cap was successfully completed. |
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| Keywords: | underwater caps round steel sheet pile cofferdam steel bracing closure back cover |
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