Numerical Investigation of Shield Cross Tunnel Minimum Cover Depth

Guang Ming Li; Jin Li Qiao; Pei Chen

doi:10.4028/www.scientific.net/AMM.256-259.1270

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 256-259Numerical Investigation of Shield Cross Tunnel...

Numerical Investigation of Shield Cross Tunnel Minimum Cover Depth

Abstract:

With the development construction of subway in the city, the cross tunnel is becoming common. However, due to the geological conditions of the subway which limited the minimum depth of the shallow overburden of the tunnel is not the same. In this paper, according to the mechanical characteristics of the cross subway tunnel in several typical soil, a three-dimensional finite element mode is established. And to find out the discipline of minimum cover depth in vertical cross the tunnel by researching tunnel shield excavation the ground surface deformation characteristics.

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Periodical:

Applied Mechanics and Materials (Volumes 256-259)

Pages:

1270-1275

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.256-259.1270

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Online since:

December 2012

Authors:

Guang Ming Li*, Jin Li Qiao, Pei Chen

Keywords:

Cover Thickness, Cross Tunnel, Finite Element Model (FEM), Vertical Displacement

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* - Corresponding Author

References

[1] Junlin Chen. Analysis of the safety distance shield tunnel throughing under the existing tunnel[J]. Design and Study, 2009, 03. In Chinese.

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[2] Ning Yu, Hehua Zhu. Analysis of earth deformation caused by shield tunnel construction and 3D-FEM simulation[J]. Rock and Soil Mechanics, 2004, 25(8): 1 330－1 334. In Chinese.

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