| CFG桩采用长螺旋钻管内泵压灌注成桩施工工艺 |
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| 引用本文： | 刘衍文.CFG桩采用长螺旋钻管内泵压灌注成桩施工工艺[J].铁道工程学报,2007(Z1). |
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| 作者姓名： | 刘衍文 |
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| 作者单位： | 中铁五局武广客运专线项目经理部,湖南,郴州,423000 |
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| 摘 要： | 研究目的:为了提高路基地基的承载力,减少路基的工后沉降,武广客运专线无砟轨道铁路基底大量采用CFG桩进行加固处理,通过本文研究使CFG桩施工更加规范。研究结果:采用长螺旋钻成孔管内泵压混凝土成桩的施工工艺,取得明显的效果,并及时处理施工过程中出现的问题,为大面积CFG桩施工提供依据,编制了CFG桩采用长螺旋钻管内泵压灌注成桩的施工工艺。
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| 关 键 词： | 客运专线 无砟轨道 地基处理 CFG桩 施工工艺 |
Construction Technique of CFG Pile of Pumping Concrete in Pipe to Form Pile with Long Auger |
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| LIU Yan-wen.Construction Technique of CFG Pile of Pumping Concrete in Pipe to Form Pile with Long Auger[J].Journal of Railway Engineering Society,2007(Z1). |
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| Authors: | LIU Yan-wen |
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| Abstract: | Research purposes: Lots of CFG piles are adopted in construction of Wuchang-Guangzhou Passenger Dedicated Line to reinforce the foundation of Bllastless track for purposes of enhancing the bearing capacity of railway subgrade,reduce the post-construction subsidence of the subgrade and make CFG pile construction more normalized. Research results:The perfect achievements in solving the problems in construction have been obtained by adopting the construction technique of pumping concrete in pipe to form pile with long auger,and the standard of construction technique of pumping concrete in pipe to form pile with long auger is worked out for providing the basis to the CFG pile construction in large area. |
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| Keywords: | passenger dedicated line ballastless railway foundation treatment CFG pile construction technique |
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