| 桩芯混凝土黏结力试验与剪力键设计 |
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| 引用本文： | 骆 钊,龚 煌,王 超.桩芯混凝土黏结力试验与剪力键设计[J].水运工程,2019(12):140-144. |
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| 作者姓名： | 骆 钊 龚 煌 王 超 |
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| 作者单位： | 中交第二航务工程局有限公司，湖北 武汉 430040；长大桥梁建设施工技术交通行业重点实验室，湖北 武汉 430040；交通运输行业交通基础设施智能制造技术研发中心，湖北 武汉 430040,中交武汉港湾工程设计研究院有限公司，湖北 武汉 430040,中交第二航务工程局有限公司，湖北 武汉 430040 |
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| 摘 要： | 为确保桩基与桩芯混凝土之间牢固黏结,同时避免因焊接桩内剪力键带来成本和工期的增加,研究API(美国石油学会)、DNV(挪威船级社)、UK DOE(英国能源部)和《港口工程桩基规范》的设计方法,并收集国内相关学者的研究成果。结合巴拿马码头项目实例,进行桩芯混凝土黏结力试验,依据API规范中的公式回归方法确定设计参数,通过论证可取消桩内剪力键。结果表明,取消桩内剪力键为项目节省350万元直接成本,并缩短2个月工期。
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| 关 键 词： | 黏结力 剪力键 试验 设计优化 |
Bond stress test of pile core concrete and design of shear key |
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| LUO Zhao,GONG Huang and WANG Chao.Bond stress test of pile core concrete and design of shear key[J].Port & Waterway Engineering,2019(12):140-144. |
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| Authors: | LUO Zhao GONG Huang and WANG Chao |
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| Institution: | CCCC Second Harbor Engineering Co.,Ltd.,Wuhan 430040,China;Key Laboratory of Transportation Industry for Construction Technology of Long Span Bridges,Wuhan 430040,China;Research and Development Center of Transport Industry of Intelligent Manufacturing Technologies of Transport Infrastructure,Wuhan 430040,China,CCCC Wuhan Harbor Engineering Design and Research Co.,Ltd.,Wuhan 430040,China and CCCC Second Harbor Engineering Co.,Ltd.,Wuhan 430040,China |
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| Abstract: | In order to keep enough bond stress between pile foundation and pile core concrete and avoid increasing construction period and money caused by welding shear key,we study the design method of API(American Petroleum Institute),DNV(Det Norske Veritas),UK DOE(United Kingdom Department for Environment) and Code for Pile Foundation in Port Engineering,and collect the experiment achievements of relevant domestic scholars.Based on the example of Panama wharf project,we carry out the bond stress test of pile core concrete,determine the design parameters by regression method of formula in API code.The shear bond in pile can be cancelled by demonstration.The results show that the shear key is cancelled successfully,which can save 3.5 million yuan and about 2 months construction period. |
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| Keywords: | bond stress shear key experiment design optimization |
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