FE analysis of grid reinforced embankment system on soft Bangkok clay
Identifieur interne : 002976 ( Main/Exploration ); précédent : 002975; suivant : 002977FE analysis of grid reinforced embankment system on soft Bangkok clay
Auteurs : D. T. Bergado [Thaïlande] ; J. C. Chai [Japon] ; N. Miura [Japon]Source :
- Computers and Geotechnics [ 0266-352X ] ; 1994.
Abstract
The behavior of a reinforced embankment on soft Bangkok clay has been analyzed by plane strain finite element method. The finite element analysis considers the selection of proper soil/reinforcement properties according to the relative displacement pattern of upper and lower interface elements. The large deformation phenomenon is simulated by updating the node coordinates, including those of the embankment elements above the current construction level, which ensures that the applied fill thickness simulates the actual field value. A full scale test reinforced embankment with a vertical face (wall) on Bangkok clay has been analyzed by the proposed finite element method, and the numerical results are compared with the field data. The response of a reinforced embankment on soft ground is principally controlled by the interaction between the reinforced soil mass and soft ground and the interaction between the grid reinforcement and the backfill soil. The tension in reinforcement and lateral displacement of the wall face varied during consolidation of foundation soil. The maximum tension force occurred in the reinforcement layer placed at the base of reinforced mass, due to bending of the reinforced mass resulting from differential settlements. It is considered necessary to account for the permeability variation of the soft ground foundation in the finite element analysis.
Url:
DOI: 10.1016/0266-352X(95)94915-D
Affiliations:
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T. Bergado</name><affiliation wicri:level="1"><country xml:lang="fr">Thaïlande</country><wicri:regionArea>Associate Professor of Geotechnical Engineering School of Civil Engineering, Asian Institute of Technology P.O. Box 2754</wicri:regionArea><wicri:noRegion>Asian Institute of Technology P.O. Box 2754</wicri:noRegion></affiliation></author><author><name sortKey="Chai, J C" sort="Chai, J C" uniqKey="Chai J" first="J. C." last="Chai">J. C. Chai</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>Research Engineer, Kiso-Jiban Consultants Co. Ltd. 1-11-15 Kudan-Kita, Chiyoda-Ku, Tokyo 102</wicri:regionArea><placeName><settlement type="city">Tokyo</settlement></placeName></affiliation></author><author><name sortKey="Miura, N" sort="Miura, N" uniqKey="Miura N" first="N." last="Miura">N. Miura</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>Director, Institute of Lowland Technology Dept. of Civil Engineering Saga University, Saga 840</wicri:regionArea><wicri:noRegion>Saga 840</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Computers and Geotechnics</title><title level="j" type="abbrev">COGE</title><idno type="ISSN">0266-352X</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1994">1994</date><biblScope unit="volume">17</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="447">447</biblScope><biblScope unit="page" to="471">471</biblScope></imprint><idno type="ISSN">0266-352X</idno></series><idno type="istex">DB8AF9CAAC9EA190E23E9F445247183DB5C5778E</idno><idno type="DOI">10.1016/0266-352X(95)94915-D</idno><idno type="PII">0266-352X(95)94915-D</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0266-352X</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The behavior of a reinforced embankment on soft Bangkok clay has been analyzed by plane strain finite element method. The finite element analysis considers the selection of proper soil/reinforcement properties according to the relative displacement pattern of upper and lower interface elements. The large deformation phenomenon is simulated by updating the node coordinates, including those of the embankment elements above the current construction level, which ensures that the applied fill thickness simulates the actual field value. A full scale test reinforced embankment with a vertical face (wall) on Bangkok clay has been analyzed by the proposed finite element method, and the numerical results are compared with the field data. The response of a reinforced embankment on soft ground is principally controlled by the interaction between the reinforced soil mass and soft ground and the interaction between the grid reinforcement and the backfill soil. The tension in reinforcement and lateral displacement of the wall face varied during consolidation of foundation soil. The maximum tension force occurred in the reinforcement layer placed at the base of reinforced mass, due to bending of the reinforced mass resulting from differential settlements. It is considered necessary to account for the permeability variation of the soft ground foundation in the finite element analysis.</div></front></TEI><affiliations><list><country><li>Japon</li><li>Thaïlande</li></country><settlement><li>Tokyo</li></settlement></list><tree><country name="Thaïlande"><noRegion><name sortKey="Bergado, D T" sort="Bergado, D T" uniqKey="Bergado D" first="D. T." last="Bergado">D. T. Bergado</name></noRegion></country><country name="Japon"><noRegion><name sortKey="Chai, J C" sort="Chai, J C" uniqKey="Chai J" first="J. C." last="Chai">J. C. Chai</name></noRegion><name sortKey="Miura, N" sort="Miura, N" uniqKey="Miura N" first="N." last="Miura">N. Miura</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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