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Stability of dual circular tunnels in cohesive-frictional soil subjected to surcharge loading
http://hdl.handle.net/10232/18538
http://hdl.handle.net/10232/185387d062f0b-9acd-43d2-87c3-b438010b921c
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YAMAMOTO_Computers and Geotechnics_v50_2013.pdf (207.4 kB)
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figures.pdf (744.8 kB)
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Tables.pdf (137.9 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2013-07-01 | |||||
| タイトル | ||||||
| タイトル | Stability of dual circular tunnels in cohesive-frictional soil subjected to surcharge loading | |||||
| タイトル言語 | en | |||||
| 著者 |
山本, 健太郎
× 山本, 健太郎× Lyamin, Andrei V.× Wilson, Daniel W.× Sloan, Scott W.× Abbo, Andrew J. |
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| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Dual circular tunnels | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Stability | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Rigid-block mechanism | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Limit analysis | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Finite elements | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 要約 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The stability of dual circular tunnels in cohesive-frictional soils subjected to surcharge loading has been investigated theoretically and numerically assuming plane strain conditions. Despite the importance of this problem, previous research on the subject is very limited compared to that on single tunnels. At present, no generally accepted design or analysis method is available to evaluate the stability of dual circular tunnels/openings in cohesive-frictional soils. In the design stage, it is important to consider the interaction effects of dual circular tunnels. Unlike the case of a single tunnel, the centre-to-centre distance appears as a new problem parameter and plays a key role in tunnel stability. In this study, continuous loading is applied to the ground surface, and a smooth interface condition is modelled. For a series of tunnel diameter-to-depth ratios and material properties, rigorous lower- and upper-bound solutions for the ultimate surcharge loading are obtained by applying finite element limit analysis techniques. For practical suitability, the results are presented in the form of dimensionless stability charts and a table with the actual tunnel stability numbers closely bracketed from above and below. As an additional check on the solutions, upper-bound rigid-block mechanisms have been developed, and the predicted collapse loads from these are compared with those from finite element limit analysis. Finally, a discussion is presented regarding the location of the critical tunnel spacing between dual circular tunnels where interaction no longer occurs. | |||||
| 内容記述言語 | en | |||||
| 収録雑誌名 |
en : Computers and Geotechnics 巻 50, p. 41-54, 発行日 2013 |
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| 作成日 | ||||||
| 日付 | 2013-05-01 | |||||
| 日付タイプ | Issued | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| ISSN | 0266352X | |||||
| NII書誌ID（雑誌） | ||||||
| 収録物識別子タイプ | NCID | |||||
| NC ID | AA10440832 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| DOI | https://doi.org/10.1016/j.compgeo.2012.12.008 | |||||
| 権利 | ||||||
| 権利情報の言語 | en | |||||
| 権利情報 | Elsevier | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| NDC | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 511 | |||||
| 公開者・出版者 | ||||||
| 出版者 | Elsevier | |||||
| 出版者言語 | en | |||||
| 備考 | ||||||
| 備考 | 著者最終稿 | |||||
