| 南京大胜关长江大桥主墩深水基础施工技术 |
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| 引用本文： | 宋伟俊,文武松,连泽平,董广文.南京大胜关长江大桥主墩深水基础施工技术[J].桥梁建设,2008(4). |
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| 作者姓名： | 宋伟俊 文武松 连泽平 董广文 |
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| 作者单位： | 中铁大桥局股份有限公司,湖北,武汉,430050 |
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| 摘 要： | 南京大胜关长江大桥6～8号主墩基础采用超大型双壁钢吊(套)箱围堰施工.在水文地质条件复杂的潮汐河流,钢吊(套)箱采用气囊法下水,浮运就位,无导向船重锚精确定位,围堰挂桩,内支撑桁架兼作钻孔平台,接高围堰,在重力大于浮力的可控状态下,实现围堰整体下放着床及河床内下沉第二次定位挂桩等施工方案.
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| 关 键 词： | 桥梁基础 深水基础 围堰 施工方法 |
Construction Techniques for Deep Water Foundations of Main Piers of Dashengguan Changjiang River Bridge in Nanjing |
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| SONG Wei-jun,WEN Wu-song,LIAN Ze-ping,DONG Guang-wen.Construction Techniques for Deep Water Foundations of Main Piers of Dashengguan Changjiang River Bridge in Nanjing[J].Bridge Construction,2008(4). |
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| Authors: | SONG Wei-jun WEN Wu-song LIAN Ze-ping DONG Guang-wen |
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| Institution: | SONG Wei-jun,WEN Wu-song,LIAN Ze-ping,DONG Guang-wen(China Zhongtie Major Bridge Engineering,Inc.,Wuhan 430050,China) |
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| Abstract: | The construction of the foundations of main piers No.6~No.8 of Dashengguan Changjiang River Bridge in Nanjing was implemented by the very huge double-wall steel boxed cofferdams.In the tidal river of complicated hydrologic and geologic conditions,the cofferdams were launched by the air bag method,floated to pier sites and accurately positioned there by heavy anchors without the aid of guiding barge.And then,the cofferdams were set on the piles,the bracing trusses inside the cofferdams were concurrently used... |
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| Keywords: | bridge foundation deep water foundation cofferdam construction method |
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