Mechanical responses of underground carriageway structures due to construction of metro tunnels beneath the existing structure: A case study

Xin Han; Fei Ye; Xingbo Han; Chao Ren; Jing Song; Ruliang Zhao

doi:10.1002/dug2.12057

Deep Underground Science and Engineering ›› 2024, Vol. 3 ›› Issue (2) : 231-246. DOI: 10.1002/dug2.12057

RESEARCH ARTICLE

Mechanical responses of underground carriageway structures due to construction of metro tunnels beneath the existing structure: A case study

Xin Han¹ ,
Fei Ye¹ ,
Xingbo Han¹ ,
Chao Ren¹ ,
Jing Song¹^,² ,
Ruliang Zhao¹^,³

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Highlights

• A simulation of the construction process of a shield tunnel and a shallow tunnel traversing beneath an existing underground carriageway is carried out.

• The torsional deformation features of the existing structure are studied.

• The mechanism and influence pattern of the “shield effect” of the existing structure on stratum subsidence are examined.

Keywords

metro tunnel / numerical simulation / structural deformation / surface subsidence / underground carriageway structure

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Xin Han, Fei Ye, Xingbo Han, Chao Ren, Jing Song, Ruliang Zhao. Mechanical responses of underground carriageway structures due to construction of metro tunnels beneath the existing structure: A case study. Deep Underground Science and Engineering, 2024, 3(2): 231‒246 https://doi.org/10.1002/dug2.12057

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