Analysis of the Influence of Excavation Sequence on the Vertical De- formation of Tunnels
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    Abstract:

    Due to large-scale unloading, excavation above the tunnels may cause soil resilience and the deforma- tion to the metro tunnels, which threaten the operation greatly. How to reduce the influence of excavation, and decrease the vertical deformation of tunnels is very important. In this study, a 3-D model for channel excavation was established in ABAQUS. The influence of the excavation sequence on the vertical deformation of tunnels was analyzed in details. The results show that it is a reasonable excavation sequence to excavate the soils above shallow tunnels and the tunnels with little spacing first. The symmetry of excavation area should be paid atten- tion to. Moreover, the excavation sequence is given as references for similar projects.

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熊伟,陈江,陈昌平,徐长节.隧道群上方土体开挖对隧道竖向变形影响分析[J].华东交通大学学报英文版,2019,36(4):113-118.
Xiong Wei, Chen Jiang, Chen Changping, Xu Changjie. Analysis of the Influence of Excavation Sequence on the Vertical De- formation of Tunnels[J]. JOURNAL OF EAST CHINA JIAOTONG UNIVERSTTY,2019,36(4):113-118

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  • Online: May 31,2021
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