Wedge Stability in the Roof of a Non-Circular Tunnel: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Wedge Stability in the Roof of a Non-Circular Tunnel

Li, Hang-Zhou / Liao, Hong-Jian / Leng, Xianlun

A closed-form solution is presented for the calculation of the stability of a wedge in the roof of a tunnel. The stability of the wedge is investigated using a two-stage relaxation procedure. A polynomial function is used to fit the horizontal induced stress along the axis of the noncircular tunnel based on the numerical results. The effect of the ratio K of the horizontal-to-vertical in situ stress on the internal horizontal force is investigated. The influences of the normal and shear stiffness and the far field stress on the stability of the wedge are investigated. The results indicate that the stiffness and far field stress have significant effect on the stability of the wedge.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Wedge Stability in the Roof of a Non-Circular Tunnel

Li, Hang-Zhou / Liao, Hong-Jian / Leng, Xianlun

A closed-form solution is presented for the calculation of the stability of a wedge in the roof of a tunnel. The stability of the wedge is investigated using a two-stage relaxation procedure. A polynomial function is used to fit the horizontal induced stress along the axis of the noncircular tunnel based on the numerical results. The effect of the ratio K of the horizontal-to-vertical in situ stress on the internal horizontal force is investigated. The influences of the normal and shear stiffness and the far field stress on the stability of the wedge are investigated. The results indicate that the stiffness and far field stress have significant effect on the stability of the wedge.

Wedge Stability in the Roof of a Non-Circular Tunnel

Li, Hang-Zhou / Liao, Hong-Jian / Leng, Xianlun

A closed-form solution is presented for the calculation of the stability of a wedge in the roof of a tunnel. The stability of the wedge is investigated using a two-stage relaxation procedure. A polynomial function is used to fit the horizontal induced stress along the axis of the noncircular tunnel based on the numerical results. The effect of the ratio K of the horizontal-to-vertical in situ stress on the internal horizontal force is investigated. The influences of the normal and shear stiffness and the far field stress on the stability of the wedge are investigated. The results indicate that the stiffness and far field stress have significant effect on the stability of the wedge.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Wedge Stability in the Roof of a Non-Circular Tunnel

Contributors:

Li, Hang-Zhou (author) / Liao, Hong-Jian (author) / Leng, Xianlun (author)

Conference:

Sixth Congress on Forensic Engineering ; 2012 ; San Francisco, California, United States

Published in:

Forensic Engineering 2012 ; 296-305

Publication date:

2012-11-13

ISBN:

DOI:

https://doi.org/10.1061/9780784412640.032

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Bridge failures , Risk management , Roofs , Forensic engineering , Failure investigations , Natural disasters , Closed form solutions , Building envelope , Structural failures , Tunnels

Similar titles

Stability of Asymmetric Roof Wedge Under Non-Symmetric Loading

Nomikos, P. P. / Yiouta-Mitra, P. V. / Sofianos, A. I. | Online Contents | 2005

Stability of Asymmetric Roof Wedge Under Non-Symmetric Loading

Nomikos, P. P. / Yiouta-Mitra, P. V. / Sofianos, A. I. | Online Contents | 2005

Stability of Asymmetric Roof Wedge Under Non-Symmetric Loading

Nomikos, P. P. / Yiouta-Mitra, P. V. / Sofianos, A. I. | British Library Online Contents | 2006

Roof Wedge Stability: a Simple Analytical Model and Numerical Validation

MacLaughlin, M. M. | British Library Conference Proceedings | 2002

Uncertainty Analysis of Tunnel Roof Stability

Mauldon, M. / Chou, K. C. / Wu, Y. | British Library Online Contents | 1997