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Settlement Calculation Method for Peat Soil Foundations.

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Title: Settlement Calculation Method for Peat Soil Foundations.
Authors: Peng, Bo1 (AUTHOR) 19115064@bjtu.edu.cn, Feng, Ruiling2 (AUTHOR) rlfeng@bjtu.edu.cn, Wu, Lijian3 (AUTHOR) lj.wu@rioh.cn, Wei, Kang4 (AUTHOR) 1239312380@qq.com, Wang, Pengcheng5 (AUTHOR) wangpc1988_2018@163.com
Source: International Journal of Geomechanics. Jul2023, Vol. 23 Issue 7, p1-10. 10p.
Subjects: Dalí, Salvador, 1904-1989, Compression loads, Bearing capacity of soils, Peat soils, Embankments
Abstract: The calculation of the settlement of a peat soil foundation is based mainly on the formula obtained by data fitting or simply modifying the universal calculation formula. The deformation mechanism reflected by these calculation methods is indistinct. Therefore, several model tests were carried out using the embankment structure of the Dali–Lijiang expressway as a prototype, and the settlement was analyzed with the one-way consolidation deformation and in situ settlement of other researchers. First, the S − logt (S is the deformation) curve of peat soil showed no obvious inverse "S" change, which is different from that of soft soil or mucky soil. According to the S − t curve, the deformation process of peat soil can be divided into three stages. Second, the relationship between the compression modulus and load was analyzed and combined with the settlement calculation results. The compressive modulus between 12.5 and 25 kPa [En(0.125–0.25)] was proposed to be used when calculating the settlement of peat soil foundations by the layerwise summation method. Moreover, the compression modulus of the three consolidation stages was proposed to be used to calculate the settlement of peat soil foundations by the layered sum method. At the same time, the influence of confinement on the compression modulus of the third consolidation stage should be considered and corrected. The accuracy of the settlement calculation method proposed in this paper was higher than the accuracy of the standard layerwise summation method, regardless of whether the horizontal limiting conditions of the standard method are modified. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Geomechanics is the property of American Society of Civil Engineers 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.)
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An: 163717529
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Settlement Calculation Method for Peat Soil Foundations.
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  Data: <searchLink fieldCode="AR" term="%22Peng%2C+Bo%22">Peng, Bo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 19115064@bjtu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Feng%2C+Ruiling%22">Feng, Ruiling</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> rlfeng@bjtu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wu%2C+Lijian%22">Wu, Lijian</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> lj.wu@rioh.cn</i><br /><searchLink fieldCode="AR" term="%22Wei%2C+Kang%22">Wei, Kang</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> 1239312380@qq.com</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Pengcheng%22">Wang, Pengcheng</searchLink><relatesTo>5</relatesTo> (AUTHOR)<i> wangpc1988_2018@163.com</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Geomechanics%22">International Journal of Geomechanics</searchLink>. Jul2023, Vol. 23 Issue 7, p1-10. 10p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Dalí%2C+Salvador%2C+1904-1989%22">Dalí, Salvador, 1904-1989</searchLink><br /><searchLink fieldCode="DE" term="%22Compression+loads%22">Compression loads</searchLink><br /><searchLink fieldCode="DE" term="%22Bearing+capacity+of+soils%22">Bearing capacity of soils</searchLink><br /><searchLink fieldCode="DE" term="%22Peat+soils%22">Peat soils</searchLink><br /><searchLink fieldCode="DE" term="%22Embankments%22">Embankments</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The calculation of the settlement of a peat soil foundation is based mainly on the formula obtained by data fitting or simply modifying the universal calculation formula. The deformation mechanism reflected by these calculation methods is indistinct. Therefore, several model tests were carried out using the embankment structure of the Dali–Lijiang expressway as a prototype, and the settlement was analyzed with the one-way consolidation deformation and in situ settlement of other researchers. First, the S − logt (S is the deformation) curve of peat soil showed no obvious inverse "S" change, which is different from that of soft soil or mucky soil. According to the S − t curve, the deformation process of peat soil can be divided into three stages. Second, the relationship between the compression modulus and load was analyzed and combined with the settlement calculation results. The compressive modulus between 12.5 and 25 kPa [En(0.125–0.25)] was proposed to be used when calculating the settlement of peat soil foundations by the layerwise summation method. Moreover, the compression modulus of the three consolidation stages was proposed to be used to calculate the settlement of peat soil foundations by the layered sum method. At the same time, the influence of confinement on the compression modulus of the third consolidation stage should be considered and corrected. The accuracy of the settlement calculation method proposed in this paper was higher than the accuracy of the standard layerwise summation method, regardless of whether the horizontal limiting conditions of the standard method are modified. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Geomechanics is the property of American Society of Civil Engineers 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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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1061/IJGNAI.GMENG-8181
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 10
        StartPage: 1
    Subjects:
      – SubjectFull: Dalí, Salvador, 1904-1989
        Type: general
      – SubjectFull: Compression loads
        Type: general
      – SubjectFull: Bearing capacity of soils
        Type: general
      – SubjectFull: Peat soils
        Type: general
      – SubjectFull: Embankments
        Type: general
    Titles:
      – TitleFull: Settlement Calculation Method for Peat Soil Foundations.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Peng, Bo
      – PersonEntity:
          Name:
            NameFull: Feng, Ruiling
      – PersonEntity:
          Name:
            NameFull: Wu, Lijian
      – PersonEntity:
          Name:
            NameFull: Wei, Kang
      – PersonEntity:
          Name:
            NameFull: Wang, Pengcheng
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 07
              Text: Jul2023
              Type: published
              Y: 2023
          Identifiers:
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              Value: 15323641
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            – Type: volume
              Value: 23
            – Type: issue
              Value: 7
          Titles:
            – TitleFull: International Journal of Geomechanics
              Type: main
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