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Evaluation of actual creep length under heading up structures aprons.

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Title: Evaluation of actual creep length under heading up structures aprons.
Authors: El Molla, Mohamed A.1 m.anas@hti.edu.eg, Saad, Neveen Y.1 neveen_yousif@eng.asu.edu.eg, Ezizah, Ghada S.1
Source: Ain Shams Engineering Journal. Dec2018, Vol. 9 Issue 4, p3365-3370. 6p.
Subjects: Head loss (Fluid mechanics), Finite element method, Creep (Materials), Hydraulic structures -- Protection, Sheet metal
Abstract: Abstract In this paper a 2D finite element model (SEEP 2D) is implemented to study the actual head loss along the sheet piles fixed at the ends of an apron of a heading up structure. Different scenarios for the thickness of the pervious layer under the apron, the length of the apron and the depths of the upstream and downstream sheet piles are studied. Results show that the assumption that outer and inner faces of the sheet piles have the same weight for estimating the creep length while designing aprons of hydraulic structures is a weak one. Design equations for the actual head loss along the outer and inner faces for both the upstream and downstream sheet piles are driven. These equations can be used as a tool in the practical design for aprons of heading up structures formed on pervious soil and provided with upstream and downstream sheet piles at its ends. [ABSTRACT FROM AUTHOR]
Copyright of Ain Shams Engineering Journal is the property of Elsevier B.V. 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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DbLabel: Engineering Source
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  Data: Evaluation of actual creep length under heading up structures aprons.
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  Data: <searchLink fieldCode="AR" term="%22El+Molla%2C+Mohamed+A%2E%22">El Molla, Mohamed A.</searchLink><relatesTo>1</relatesTo><i> m.anas@hti.edu.eg</i><br /><searchLink fieldCode="AR" term="%22Saad%2C+Neveen+Y%2E%22">Saad, Neveen Y.</searchLink><relatesTo>1</relatesTo><i> neveen_yousif@eng.asu.edu.eg</i><br /><searchLink fieldCode="AR" term="%22Ezizah%2C+Ghada+S%2E%22">Ezizah, Ghada S.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Ain+Shams+Engineering+Journal%22">Ain Shams Engineering Journal</searchLink>. Dec2018, Vol. 9 Issue 4, p3365-3370. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Head+loss+%28Fluid+mechanics%29%22">Head loss (Fluid mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Creep+%28Materials%29%22">Creep (Materials)</searchLink><br /><searchLink fieldCode="DE" term="%22Hydraulic+structures+--+Protection%22">Hydraulic structures -- Protection</searchLink><br /><searchLink fieldCode="DE" term="%22Sheet+metal%22">Sheet metal</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Abstract In this paper a 2D finite element model (SEEP 2D) is implemented to study the actual head loss along the sheet piles fixed at the ends of an apron of a heading up structure. Different scenarios for the thickness of the pervious layer under the apron, the length of the apron and the depths of the upstream and downstream sheet piles are studied. Results show that the assumption that outer and inner faces of the sheet piles have the same weight for estimating the creep length while designing aprons of hydraulic structures is a weak one. Design equations for the actual head loss along the outer and inner faces for both the upstream and downstream sheet piles are driven. These equations can be used as a tool in the practical design for aprons of heading up structures formed on pervious soil and provided with upstream and downstream sheet piles at its ends. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Ain Shams Engineering Journal is the property of Elsevier B.V. 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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      – Type: doi
        Value: 10.1016/j.asej.2018.03.009
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 6
        StartPage: 3365
    Subjects:
      – SubjectFull: Head loss (Fluid mechanics)
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Creep (Materials)
        Type: general
      – SubjectFull: Hydraulic structures -- Protection
        Type: general
      – SubjectFull: Sheet metal
        Type: general
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      – TitleFull: Evaluation of actual creep length under heading up structures aprons.
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            NameFull: Saad, Neveen Y.
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            NameFull: Ezizah, Ghada S.
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            – D: 01
              M: 12
              Text: Dec2018
              Type: published
              Y: 2018
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