| 深基坑近距离上跨运营轨道交通区间隧道的技术措施研究 |
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| 引用本文： | 陈方.深基坑近距离上跨运营轨道交通区间隧道的技术措施研究[J].中国市政工程,2021(2):84-87,128. |
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| 作者姓名： | 陈方 |
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| 作者单位： | 上海黄浦江越江设施投资建设发展有限公司 |
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| 摘 要： | 对于既有轨道交通区间隧道上方的深基坑开挖,采用“三轴搅拌桩‘门式加固’+抽条开挖+抗拔桩”等多种技术措施,减少了基坑土体卸载过程中引起的隧道纵向不均匀变形。通过合理安排各个工序,确保施工速度,进而控制整个隧道的变形量,可供相关工程借鉴。
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| 关 键 词： | 基坑 软土地基 卸载 门式加固 抽条开挖 抗拔桩 |
Research on Technical Measures of Deep Foundation Pit Short-Distance over Crossing the Operating Rail Transit Tunnel |
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| CHEN Fang.Research on Technical Measures of Deep Foundation Pit Short-Distance over Crossing the Operating Rail Transit Tunnel[J].China Municipal Engineering,2021(2):84-87,128. |
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| Authors: | CHEN Fang |
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| Affiliation: | (Shanghai Huangpu River Cross-River Facility Investment&Construction Development Co.,Ltd.,Shanghai 200040,China) |
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| Abstract: | For the deep foundation pit excavation above the existing tunnel in the rail transit section,it adopts the technical measures of three axis mixing pile door reinforcement+strip excavation+anti-pulling pile,which reduces the longitudinal uneven deformation of the tunnel caused by the unloading of the foundation pit soil.By arranging each process reasonably,ensuring the construction speed,and then controlling the deformation of the whole tunnel,it can be used for reference for the related projects. |
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| Keywords: | foundation pit soft soil foundation unloading door reinforcement strip excavation anti-pulling pile |
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