| 真空辅助压浆在客运专线箱梁施工中的应用 |
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| 引用本文： | 武安峰.真空辅助压浆在客运专线箱梁施工中的应用[J].铁道工程学报,2010(3). |
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| 作者姓名： | 武安峰 |
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| 作者单位： | 中铁大桥局集团有限公司,郑州,450053 |
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| 摘 要： | 研究目的:针对温福铁路客运专线平阳特大桥后张法预应力现浇箱梁施工过程中应用的真空辅助压浆施工技术,对实际施工中所采取的质量控制要点进行论述,并阐述采用真空辅助压浆工艺进行质量控制的经验和措施。研究结论:在国内后张法预应力箱梁施工中,传统压浆工艺中浆体本身含有气泡及有害成分的雨水,易造成孔隙或预应力筋的腐蚀,降低结构的耐久性。另外,施工中可能存在压浆不密实、不饱和,极易产生孔隙,为后张法预应力箱梁质量留下隐患。而采用真空辅助压浆施工技术,可有效保证预应力孔道压浆后的密实度,提高了结构的安全性、耐久性和使用年限。
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| 关 键 词： | 真空辅助压浆 客专箱梁 耐久性 防锈蚀 密实度 |
Application of Vacuum Auxiliary Mud Jacking in Construction of Box Girder for Passenger Dedicated Line |
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| WU An-feng.Application of Vacuum Auxiliary Mud Jacking in Construction of Box Girder for Passenger Dedicated Line[J].Journal of Railway Engineering Society,2010(3). |
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| Authors: | WU An-feng |
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| Institution: | WU An-feng(China Zhongtie Major Bridge Engineering Group,Zhengzhou,Henan 450053,China) |
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| Abstract: | Research purposes: This paper mainly describes the main points for the quality control for the construction technology of vacuum auxiliary mud jacking applied in construction of post-tensioned prestressing box girder of Pingyang Bridge of Wenzhou-Fuzhou Passenger Dedicated Line and introduces the experiences and measures for the quality control for the construction technology of vacuum auxiliary mud jacking.Research conclusions:For construction of the post-tensioned presstressing box girder with traditional... |
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| Keywords: | vacuum auxiliary mud jacking box girder for passenger dedicated line durability corrosion prevention compactness |
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