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Simulation analysis of excavation of shallow tunnel in multilayered ground by DEM
http://hdl.handle.net/10112/5744
http://hdl.handle.net/10112/57444abcc1b7-7353-4b9c-8d34-6308b390d2ee
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KU-1100-20090907-08.pdf (627.4 kB)
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| Item type | 会議発表論文 / Conference Paper(1) | |||||
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| 公開日 | 2011-12-12 | |||||
| タイトル | ||||||
| タイトル | Simulation analysis of excavation of shallow tunnel in multilayered ground by DEM | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
| 資源タイプ | conference paper | |||||
| 著者 |
Ise, Kentaro
× Ise, Kentaro× 楠見, 晴重 |
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| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 24739 | |||||
| 姓名 | 伊世, 健太郎 | |||||
| 概要 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The collapse accident of shallow tunnel occurred under construction in Japan, and landslides of the volume of about 6,700 m3 flowed into the tunnel. Geology of the collapse location is composed of 5 layers, and the upper side of the tunnel is used as field of rice. It is supposed that factors of this collapse accident were low earth covering, distribution of sandy soil layer and cohesive soil layer that are low-stiffness, and so on. However, its details are not clarified. In this paper, we try to clarify the mechanism of this collapse in modeling of ground composed of 5 layers using two dimensional DEM. In this analysis method, value of physical properties of simulation object is controlled by interparticle parameters. Then, in advance of simulation of excavation, we tried the simulation analysis of biaxial compression test by DEM, and examined the parameters that are expressible of the simulation object. Using this analytical condition, we tried to simulate excavation of the shallow tunnel, and to examine the differences of ground behavior by geological structures. As the result of this analysis, it is recognized that subsidence of ground surface is inhibited by improving the layers of low-stiffness. | |||||
| 書誌情報 |
Proceeding of EIT-JSCE Joint International Symposium 2009 発行日 2009-09-07 |
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| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
