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Numerical Investigation of a Foundation Pit Supported by a Composite Soil Nailing Structure
http://hdl.handle.net/10069/39725
http://hdl.handle.net/10069/397259250bfb9-c561-463c-8a2f-0b1fdfa46936
名前 / ファイル | ライセンス | アクション |
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Symmetry12_252.pdf (5.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-03-24 | |||||
タイトル | ||||||
タイトル | Numerical Investigation of a Foundation Pit Supported by a Composite Soil Nailing Structure | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Composite soil nailing | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Mixing pile | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Symmetrical foundation pit | |||||
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 | |||||
著者 |
Han, Wei
× Han, Wei× Li, Genxiao× Sun, Zhaohui× Luan, Hengjie× Liu, Chuanzheng× Wu, Xianlong |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In special geology conditions such as silt-soil, foundation pits are prone to instability and severe deformation. In this paper, a composite soil nailing structure was studied and its effect on a silt-soil symmetrical foundation pit investigated. The factors affecting the stability of the pit as well as its deformation characteristics were also explored. The results show that excavation depth of the foundation pit has a significant impact on its stability. The soil outside the foundation pit is in the form of a parabola, and the uplift of the soil mainly occurs at the bottom. The horizontal displacement of soil on the side wall of the foundation pit presents a "bulk belly" form. In addition, the axial force of soil nails is larger in the middle part, and smaller at both ends in the shape of a spindle. Moreover, the horizontal displacement is positively correlated with the inclination and spacing of the soil nails, but negatively correlated with the diameter and depth of the mixing pile inlay. Furthermore, the inclination and spacing of the soil nails, the diameter, and embedded depth of the mixing pile have their own critical values for stability of the foundation pit. Specifically, in this paper, with respect to soil nails, inclination should be below 30° and prestress value should not exceed 20 kN. With respect to the mixing pile, the diameter should be less than 1.5 m; when the embedded depth of the mixing pile exceeds the critical depth, the limiting effect of the mixing pile on horizontal displacement is not significant. This research provides important takeaways for the design of a composite soil nailing structure for symmetrical foundation pits. | |||||
書誌情報 |
Symmetry 巻 12, 号 2, p. 252, 発行日 2020-02-06 |
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出版者 | ||||||
出版者 | MDPI | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 20738994 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.3390/sym12020252 | |||||
権利 | ||||||
権利情報 | c 2020 by the authors.Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | |||||
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 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Symmetry, 12(2), art.no.252; 2020 |