Load bearing and settlement characteristics of Geosynthetic Encased Columns under seismic loads.
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| Title: | Load bearing and settlement characteristics of Geosynthetic Encased Columns under seismic loads. |
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| Authors: | Cengiz, Cihan1 (AUTHOR) c.cihancengiz@gmail.com, Guler, Erol2 (AUTHOR) |
| Source: | Soil Dynamics & Earthquake Engineering (0267-7261). Sep2020, Vol. 136, pN.PAG-N.PAG. 1p. |
| Subjects: | Shaking table tests, Earthquake intensity, Lateral loads, Seismic response, Bearing capacity of soils |
| Abstract: | Ordinary stone columns and Geosynthetic Encased Stone columns are used in remediation of soft soils with low bearing capacities. Primary objective of granular columns is to provide structural support to the overlying foundation layers. Given that the granular columns implemented in soft soil conditions support a large portion of the surcharge pressure, developing an understanding of settlement response and pressure bearing characteristics of granular columns under seismic loading conditions is of paramount importance. This study aims to present experimental findings of granular column load bearing response under simulated seismic loads and the effects of lateral boundary conditions on column behavior. In order to mimic the seismic behavior of columns supporting a sustained surcharge load, two different large-scale experimental assemblies are used in 1-g shaking table tests. The assemblies used were a laminar box and a rigid box which were intended as physical analogies for free-field and rigid boundary conditions. The reinforcement strains, pressure concentration on column heads, and settlement of the unit cells enhanced with granular columns with varying reinforcement stiffnesses are studied. The relationship between unit cell settlement and two important earthquake intensity measures namely, Arias Intensity and Shaking Intensity Rate, are also investigated. •Settlement and pressure concentration of granular column enhanced soft soil in two different boundary conditions is studied. •Seismic response of granular columns supporting vertical loads are presented. •The interplay between seismically induced settlement and commonly used earthquake intensity measures are elaborated. [ABSTRACT FROM AUTHOR] |
| Copyright of Soil Dynamics & Earthquake Engineering (0267-7261) 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: 144632864 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Load bearing and settlement characteristics of Geosynthetic Encased Columns under seismic loads. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Cengiz%2C+Cihan%22">Cengiz, Cihan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> c.cihancengiz@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Guler%2C+Erol%22">Guler, Erol</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Soil+Dynamics+%26+Earthquake+Engineering+%280267-7261%29%22">Soil Dynamics & Earthquake Engineering (0267-7261)</searchLink>. Sep2020, Vol. 136, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Shaking+table+tests%22">Shaking table tests</searchLink><br /><searchLink fieldCode="DE" term="%22Earthquake+intensity%22">Earthquake intensity</searchLink><br /><searchLink fieldCode="DE" term="%22Lateral+loads%22">Lateral loads</searchLink><br /><searchLink fieldCode="DE" term="%22Seismic+response%22">Seismic response</searchLink><br /><searchLink fieldCode="DE" term="%22Bearing+capacity+of+soils%22">Bearing capacity of soils</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Ordinary stone columns and Geosynthetic Encased Stone columns are used in remediation of soft soils with low bearing capacities. Primary objective of granular columns is to provide structural support to the overlying foundation layers. Given that the granular columns implemented in soft soil conditions support a large portion of the surcharge pressure, developing an understanding of settlement response and pressure bearing characteristics of granular columns under seismic loading conditions is of paramount importance. This study aims to present experimental findings of granular column load bearing response under simulated seismic loads and the effects of lateral boundary conditions on column behavior. In order to mimic the seismic behavior of columns supporting a sustained surcharge load, two different large-scale experimental assemblies are used in 1-g shaking table tests. The assemblies used were a laminar box and a rigid box which were intended as physical analogies for free-field and rigid boundary conditions. The reinforcement strains, pressure concentration on column heads, and settlement of the unit cells enhanced with granular columns with varying reinforcement stiffnesses are studied. The relationship between unit cell settlement and two important earthquake intensity measures namely, Arias Intensity and Shaking Intensity Rate, are also investigated. •Settlement and pressure concentration of granular column enhanced soft soil in two different boundary conditions is studied. •Seismic response of granular columns supporting vertical loads are presented. •The interplay between seismically induced settlement and commonly used earthquake intensity measures are elaborated. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Soil Dynamics & Earthquake Engineering (0267-7261) 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.soildyn.2020.106244 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Shaking table tests Type: general – SubjectFull: Earthquake intensity Type: general – SubjectFull: Lateral loads Type: general – SubjectFull: Seismic response Type: general – SubjectFull: Bearing capacity of soils Type: general Titles: – TitleFull: Load bearing and settlement characteristics of Geosynthetic Encased Columns under seismic loads. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Cengiz, Cihan – PersonEntity: Name: NameFull: Guler, Erol IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 02677261 Numbering: – Type: volume Value: 136 Titles: – TitleFull: Soil Dynamics & Earthquake Engineering (0267-7261) Type: main |
| ResultId | 1 |
