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Experimental Investigation on Deformation Behavior of Sandy Soil Around an Underground Granary During Groundwater Level Rise.

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Title: Experimental Investigation on Deformation Behavior of Sandy Soil Around an Underground Granary During Groundwater Level Rise.
Authors: Ma, Miao1, Han, Yang2, Zhu, Zijia3, Wang, Yanchao4 1317389891@qq.com, Xu, Zhijun5 xuzhijun@haut.edu.cn, Yang, Qingnian6 newyear1230@163.com
Source: Engineering Letters. Apr2026, Vol. 34 Issue 4, p1410-1419. 10p.
Subjects: Soil-structure interaction, Soil compaction, Water table, Soil mechanics, Digital image correlation, Grain storage
Abstract: underground ecological granary, as an energy-efficient, land-saving, low-temperature, and environmentally friendly storage facility, provides a promising solution for food security. However, this large-scale, deep-buried structure is susceptible to buoyancy-induced instability, especially when empty and during groundwater level rise. The interaction mechanisms between underground granaries and surrounding soil, particularly in widely distributed sandy soil, remain inadequately understood. To investigate the deformation behavior of sandy soil with different relative compactness around an underground granary model during groundwater level rise, this study developed a visual test system based on digital image correlation technology. The results show that the buoyancy-induced failure process of the granary-soil system can be divided into three stages: saturation, floating, and instability failure. As the relative compactness of the surrounding sandy soil increases, the range and amplitude of soil deformation decrease significantly, thereby enhancing system stability. In loose sandy soil, deformation is extensive, characterized by overall shear failure with local flow failure. In medium-dense and dense sandy soil, however, the enhanced soil skeleton and interfacial constraints effectively restrict deformation and failure zones. Notably, in dense sandy soil, the failure mode of the system tends to exhibit the "brittle failure" typical of solid materials, which introduces new challenges for structural safety. This study offers technical insights into the interaction mechanisms between underground granaries and soil under groundwater influence, as well as the optimization of engineering design. [ABSTRACT FROM AUTHOR]
Copyright of Engineering Letters is the property of International Association of Engineers (IAENG) and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 192720701
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PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: Experimental Investigation on Deformation Behavior of Sandy Soil Around an Underground Granary During Groundwater Level Rise.
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  Data: <searchLink fieldCode="AR" term="%22Ma%2C+Miao%22">Ma, Miao</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Han%2C+Yang%22">Han, Yang</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Zhu%2C+Zijia%22">Zhu, Zijia</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang%2C+Yanchao%22">Wang, Yanchao</searchLink><relatesTo>4</relatesTo><i> 1317389891@qq.com</i><br /><searchLink fieldCode="AR" term="%22Xu%2C+Zhijun%22">Xu, Zhijun</searchLink><relatesTo>5</relatesTo><i> xuzhijun@haut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yang%2C+Qingnian%22">Yang, Qingnian</searchLink><relatesTo>6</relatesTo><i> newyear1230@163.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Engineering+Letters%22">Engineering Letters</searchLink>. Apr2026, Vol. 34 Issue 4, p1410-1419. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Soil-structure+interaction%22">Soil-structure interaction</searchLink><br /><searchLink fieldCode="DE" term="%22Soil+compaction%22">Soil compaction</searchLink><br /><searchLink fieldCode="DE" term="%22Water+table%22">Water table</searchLink><br /><searchLink fieldCode="DE" term="%22Soil+mechanics%22">Soil mechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Digital+image+correlation%22">Digital image correlation</searchLink><br /><searchLink fieldCode="DE" term="%22Grain+storage%22">Grain storage</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: underground ecological granary, as an energy-efficient, land-saving, low-temperature, and environmentally friendly storage facility, provides a promising solution for food security. However, this large-scale, deep-buried structure is susceptible to buoyancy-induced instability, especially when empty and during groundwater level rise. The interaction mechanisms between underground granaries and surrounding soil, particularly in widely distributed sandy soil, remain inadequately understood. To investigate the deformation behavior of sandy soil with different relative compactness around an underground granary model during groundwater level rise, this study developed a visual test system based on digital image correlation technology. The results show that the buoyancy-induced failure process of the granary-soil system can be divided into three stages: saturation, floating, and instability failure. As the relative compactness of the surrounding sandy soil increases, the range and amplitude of soil deformation decrease significantly, thereby enhancing system stability. In loose sandy soil, deformation is extensive, characterized by overall shear failure with local flow failure. In medium-dense and dense sandy soil, however, the enhanced soil skeleton and interfacial constraints effectively restrict deformation and failure zones. Notably, in dense sandy soil, the failure mode of the system tends to exhibit the "brittle failure" typical of solid materials, which introduces new challenges for structural safety. This study offers technical insights into the interaction mechanisms between underground granaries and soil under groundwater influence, as well as the optimization of engineering design. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Engineering Letters is the property of International Association of Engineers (IAENG) and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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        StartPage: 1410
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      – SubjectFull: Soil-structure interaction
        Type: general
      – SubjectFull: Soil compaction
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      – SubjectFull: Water table
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      – SubjectFull: Soil mechanics
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      – SubjectFull: Digital image correlation
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      – SubjectFull: Grain storage
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      – TitleFull: Experimental Investigation on Deformation Behavior of Sandy Soil Around an Underground Granary During Groundwater Level Rise.
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            NameFull: Han, Yang
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            NameFull: Zhu, Zijia
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            NameFull: Wang, Yanchao
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              Text: Apr2026
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              Y: 2026
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