A real-life stability model for a large shield-driven tunnel in heterogeneous soft soils

被引：44

作者：

Xinyu Hu

Zixin Zhang

Scott Kieffer

机构：

[1] Department of Civil Engineering, Shanghai Institute of Technology, Shanghai

[2] Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai

[3] Institute of Applied Geosciences, Graz University of Technology, Graz

来源：

Frontiers of Structural and Civil Engineering | 2012年 / 6卷 / 2期

基金：

中国国家自然科学基金;

关键词：

analytical solution; face stability; multilayered soil; shield-driven tunnel;

D O I：

10.1007/s11709-012-0149-7

中图分类号：

学科分类号：

摘要：

The current models that have been published to date only allow for homogeneous soil at the tunnel face. This paper presents a real-life face stability model to determine the minimal pressure needed at the tunnel face for a large shield-driven tunnel in heterogeneous soft soils. It is found that the influence of multilayered soil boundaries is significant, especially for the mixed-layer (e.g., sand and clay) soils. The suggested M-M model is developed by considering the influence of the heterogeneity of the soil on the angle of slip and the minimal support pressure. Comparisons of the solutions in mixed-layer soils are conducted, and the effects of the involved parameters for a large, multilayered, shield-driven tunnel are also investigated. © 2012 Higher Education Press and Springer-Verlag Berlin Heidelberg.

引用

页码：176 / 187

页数：11

共 21 条

[1]

Atkinson J.H., Potts D.M., Stability of a shallow circular tunnel in cohesionless soil, Geotechnique, 27, 2, pp. 203-215, (1977)

[2]

Horn M., Horizontal earth pressure on perpendicular tunnel face, Hungarian National Conference of the Foundation Engineer Industry, (1961)

[3]

Jancsecz S., Steiner W., Face support for a large mix-shield in heterogeneous ground conditions, Tunneling, 94, pp. 531-550, (1994)

[4]

Anagnostou G., Kovari K., The face stability of slurry shield-driven tunnels, Tunnelling and Underground Space Technology, 9, 2, pp. 165-174, (1994)

[5]

Belter B., Heiermann W., Katzenbach R., Et al., NBS Köln-Rhein/Main-Neue Wege bei der Umsetzung von Verkehrsprojekten, Bauingenieur, 74, 1, pp. 1-7, (1999)

[6]

Broere W., Tunnel Face Stability and New CPT Applications, (2001)

[7]

Leca E., Dormieux L., Upper and lower bound solutions for the face stability of shallow tunnels in frictional material, Geotechnique, 40, 4, pp. 581-606, (1990)

[8]

Soubra A.H., Dias D., Emeriault F., Et al., Three-dimensional face stability analysis of circular tunnels by a kinematical approach, GeoCongress 2008: Characterization, Monitoring, and Modeling of GeoSystems (GSP 179), pp. 894-901, (2008)

[9]

Vermeer P.A., Ruse N.M., Marcher T., Tunnel heading stability in drained ground, Felsbau, 20, 6, pp. 8-18, (2002)

[10]

Kirsch A., Experimental investigation of the face stability of shallow tunnels in sand, Acta Geotechnica, 5, 1, pp. 43-62, (2010)

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