Applied bearing pressure beneath a reinforced soil foundation used in a geosynthetic reinforced soil integrated bridge system.
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| Title: | Applied bearing pressure beneath a reinforced soil foundation used in a geosynthetic reinforced soil integrated bridge system. |
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| Authors: | Talebi, Majid1 mtalebi@udel.edu, Meehan, Christopher L.1 cmeehan@udel.edu, Leshchinsky, Dov1 dov@udel.edu |
| Source: | Geotextiles & Geomembranes. Dec2017, Vol. 45 Issue 6, p580-591. 12p. |
| Subjects: | Reinforced soils, Geosynthetics, Bridge abutments, Bearing capacity (Bridges), Bridge design & construction |
| Abstract: | Geosynthetic reinforced soil integrated bridge system (GRS-IBS) design guidelines recommend the use of a reinforced soil foundation (RSF) to support the dead loads that are applied by the reinforced soil abutment and bridge superstructure, as well as any live loads that are applied by traffic on the bridge or abutment. The RSF is composed of high-quality granular fill material that is compacted and encapsulated within a geotextile fabric. Current GRS-IBS interim implementation design guidelines recommend the use of design methodologies for bearing capacity that are based around rigid foundation behavior, which yield a trapezoidal applied pressure distribution that is converted to a uniform applied pressure that acts over a reduced footing width for purposes of analysis. Recommended methods for determining the applied pressure distribution beneath the RSF for settlement analyses follow conventional methodologies for assessing the settlement of spread footings, which typically assume uniformly applied pressures beneath the base of the foundation that are distributed to the underlying soil layers in a fashion that can reasonably be modeled with an elastic-theory approach. Field data collected from an instrumented GRS-IBS that was constructed over a fine-grained soil foundation indicates that the RSF actually behaves in a fairly flexible way under load, yielding an applied pressure distribution that is not uniform or trapezoidal, and which is significantly different than what conventional GRS-IBS design methodologies assume. This paper consequently presents an empirical approach to determining the applied pressure distribution beneath the RSF in GRS-IBS construction. This empirical approach is a useful first step for researchers, as it draws important attention to this issue, and provides a framework for collecting meaningful field data on future projects which accurately capture real GRS-IBS foundation behavior. [ABSTRACT FROM AUTHOR] |
| Copyright of Geotextiles & Geomembranes 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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 125419448 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Applied bearing pressure beneath a reinforced soil foundation used in a geosynthetic reinforced soil integrated bridge system. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Talebi%2C+Majid%22">Talebi, Majid</searchLink><relatesTo>1</relatesTo><i> mtalebi@udel.edu</i><br /><searchLink fieldCode="AR" term="%22Meehan%2C+Christopher+L%2E%22">Meehan, Christopher L.</searchLink><relatesTo>1</relatesTo><i> cmeehan@udel.edu</i><br /><searchLink fieldCode="AR" term="%22Leshchinsky%2C+Dov%22">Leshchinsky, Dov</searchLink><relatesTo>1</relatesTo><i> dov@udel.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Geotextiles+%26+Geomembranes%22">Geotextiles & Geomembranes</searchLink>. Dec2017, Vol. 45 Issue 6, p580-591. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Reinforced+soils%22">Reinforced soils</searchLink><br /><searchLink fieldCode="DE" term="%22Geosynthetics%22">Geosynthetics</searchLink><br /><searchLink fieldCode="DE" term="%22Bridge+abutments%22">Bridge abutments</searchLink><br /><searchLink fieldCode="DE" term="%22Bearing+capacity+%28Bridges%29%22">Bearing capacity (Bridges)</searchLink><br /><searchLink fieldCode="DE" term="%22Bridge+design+%26+construction%22">Bridge design & construction</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Geosynthetic reinforced soil integrated bridge system (GRS-IBS) design guidelines recommend the use of a reinforced soil foundation (RSF) to support the dead loads that are applied by the reinforced soil abutment and bridge superstructure, as well as any live loads that are applied by traffic on the bridge or abutment. The RSF is composed of high-quality granular fill material that is compacted and encapsulated within a geotextile fabric. Current GRS-IBS interim implementation design guidelines recommend the use of design methodologies for bearing capacity that are based around rigid foundation behavior, which yield a trapezoidal applied pressure distribution that is converted to a uniform applied pressure that acts over a reduced footing width for purposes of analysis. Recommended methods for determining the applied pressure distribution beneath the RSF for settlement analyses follow conventional methodologies for assessing the settlement of spread footings, which typically assume uniformly applied pressures beneath the base of the foundation that are distributed to the underlying soil layers in a fashion that can reasonably be modeled with an elastic-theory approach. Field data collected from an instrumented GRS-IBS that was constructed over a fine-grained soil foundation indicates that the RSF actually behaves in a fairly flexible way under load, yielding an applied pressure distribution that is not uniform or trapezoidal, and which is significantly different than what conventional GRS-IBS design methodologies assume. This paper consequently presents an empirical approach to determining the applied pressure distribution beneath the RSF in GRS-IBS construction. This empirical approach is a useful first step for researchers, as it draws important attention to this issue, and provides a framework for collecting meaningful field data on future projects which accurately capture real GRS-IBS foundation behavior. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Geotextiles & Geomembranes 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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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.geotexmem.2017.07.008 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 580 Subjects: – SubjectFull: Reinforced soils Type: general – SubjectFull: Geosynthetics Type: general – SubjectFull: Bridge abutments Type: general – SubjectFull: Bearing capacity (Bridges) Type: general – SubjectFull: Bridge design & construction Type: general Titles: – TitleFull: Applied bearing pressure beneath a reinforced soil foundation used in a geosynthetic reinforced soil integrated bridge system. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Talebi, Majid – PersonEntity: Name: NameFull: Meehan, Christopher L. – PersonEntity: Name: NameFull: Leshchinsky, Dov IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 02661144 Numbering: – Type: volume Value: 45 – Type: issue Value: 6 Titles: – TitleFull: Geotextiles & Geomembranes Type: main |
| ResultId | 1 |
