| 柱锤冲扩桩在大西客运专线湿陷性黄土地基处理中的应用 |
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| 引用本文： | 张岭,靳双鹏,刘跃辉.柱锤冲扩桩在大西客运专线湿陷性黄土地基处理中的应用[J].路基工程,2012,0(6):160-162. |
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| 作者姓名： | 张岭 靳双鹏 刘跃辉 |
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| 作者单位： | 中铁十二局集团第一工程有限公司，山西临汾 041000 |
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| 摘 要： | 湿陷性黄土地基会造成铁路路基大幅沉降，甚至严重影响路基的安全和使用，必须采取可靠的地基处理措施。结合大西铁路客运专线DK551+230~+850段路基施工，介绍柱锤冲扩桩在湿陷性黄土地基应用的施工工艺、注意事项及处理效果。工程实践表明:应用柱锤冲扩桩加固湿陷性黄土地基，处理效果很好,各项技术指标都满足规范和设计要求。
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| 关 键 词： | 柱锤冲扩桩 湿陷性黄土 地基加固 处理效果 |
| 收稿时间： | 2019-06-30 |
Column Pile Hammer Application in Collapsible Loess Foundation Treatment in the Project Datong-Xi'an PDL |
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| Authors: | ZHANG Ling JIN Shuang-peng LIU Yue-hui |
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| Institution: | (The 1st Engineering Co.,Ltd.of China Railway 12th Bureau Group,Linfen 041000,Shanxi,China) |
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| Abstract: | The collapsible loess foundation can cause railway subgrade settlement to a great extent, even affects the safety and service of the subgrade, which had to be treated. Combined with the subgrade construction of the DK551+230~+850 section of Datong-Xi'an PDL, the construction process, precautions and treating effect of down hole dynamic compaction pile applied in collapsible loess foundation are described. The engineering practice shows that the application of down hole dynamic compaction pile to collapsible loess foundation reinforcement has considerable treating effect with the technical indices in conformity with the specification and design requirement. |
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| Keywords: | down hole dynamic compaction pile collapsible loess foundation reinforcement treatment effect |
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