Stability charts for a tall tunnel in undrained clay
Article
Article Title | Stability charts for a tall tunnel in undrained clay |
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ERA Journal ID | 210663 |
Article Category | Article |
Authors | Shiau, Jim (Author), Sams, Mathew (Author) and Chen, Jing (Author) |
Journal Title | International Journal of GEOMATE |
Journal Citation | 10 (20), pp. 1764-1769 |
Number of Pages | 6 |
Year | 2016 |
Publisher | Geomate International Society |
Place of Publication | Japan |
ISSN | 2186-2982 |
2186-2990 | |
Web Address (URL) | http://www.geomatejournal.com/node/357 |
Abstract | The stability of a plane strain tall rectangular tunnel in undrained clay is investigated in this paper using shear strength reduction technique. The finite difference program FLAC is used to determine the factor of safety for unsupported tall rectangular tunnels. Numerical results are compared with upper and lower bound limit solutions, and the comparison finds a very good agreement with solutions to be within 5% difference. Design charts for tall rectangular tunnels are then presented for a wide range of practical scenarios using dimensionless ratios ~ a similar approach to Taylor’s slope stability chart. A number of typical examples are presented to illustrate the potential usefulness for practicing engineers. |
Keywords | stability analysis; tall tunnel; undrained clay; factor of safety, FLAC, strength reduction method |
ANZSRC Field of Research 2020 | 400502. Civil geotechnical engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | School of Civil Engineering and Surveying |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4733/stability-charts-for-a-tall-tunnel-in-undrained-clay
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