| 长螺旋泵压CFG桩加固客运专线软土地基工程应用研究 |
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| 引用本文： | 常浩.长螺旋泵压CFG桩加固客运专线软土地基工程应用研究[J].铁道工程学报,2010(1). |
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| 作者姓名： | 常浩 |
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| 作者单位： | 中铁七局集团有限公司,郑州,450016 |
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| 摘 要： | 研究目的:石武客运专线河南段郑州及周边地区土层以饱和粉土、粉细砂、饱和软粘土为主,施工过程中出现了地面沉降、桩周土体开裂等问题;为解决这一工程建设中出现的难题,研究采用长螺旋泵压CFG桩复合地基技术加固软土地基的施工方法,控制地表沉降变形,提高客运专线路基的工程质量。研究结论:通过对采用长螺旋泵压CFG桩复合地基技术加固软土地基施工方法的研究,提出了施工工艺流程和施工要注意的要点,并对施工过程中可能出现的技术问题进行了分析,提出了可采取的控制措施,实践验证此方法取得了较好的效果,可为类似工程提供借鉴。
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| 关 键 词： | CFG桩施工要点 加固 液化粉细砂及粉土 处理方法 |
Research on the Application of Long Spiral Pump Pressure CFG Pile in Reinforcing Soft Soil Subgrade of Passenger Dedicated Line |
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| CHANG Hao.Research on the Application of Long Spiral Pump Pressure CFG Pile in Reinforcing Soft Soil Subgrade of Passenger Dedicated Line[J].Journal of Railway Engineering Society,2010(1). |
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| Authors: | CHANG Hao |
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| Affiliation: | CHANG Hao (The Seventh Engineering Group Co.,Ltd of China Railway,Zhengzhou,Henan 450016,China) |
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| Abstract: | Research purposes: The strata of Zhengzhou and its surrounding area along Shijiazhuang-Wuhan Passenger Dedicated Line mainly contain saturated silt,mealy sand and saturated clay,so ground settlement and the crack of soil body around the pile happened during construction.In order to solve these problems,the research was done on application of long spiral pump pressure CFG pile in reinforcing soft soil subgrade to control the ground settlement deformation and improve the construction quality of the line.Resea... |
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| Keywords: | CFG pile key point of construction reinforcement liquefied mealy sand and silt treatment method |
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