Spread footings bearing on circular and square cement-stabilized sand layers above weakly bonded residual soil
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/249688 |
Resumo: | The practice of soil-cement reinforced layers to bear shallow foundations is a feasible option in low bearing capacity soils. This paper addresses the interpretation of plate load tests bearing on compacted artificially cemented sand layers of distinct sizes and shapes (cylindrical and prismatic) overlaying a weakly bonded residual soil stratum. Static load tests were carried out on a rigid circular steel plate (diameter of 300-mm) resting on sand-cement reinforced layers with distinct areas (diameters/widths of 450, 600, and 900-mm) and constant thickness of 300-mm. The results have shown two distinct failure modes that rely on the cemented layer’s diameter/width: (a) the steel plate and the artificially cemented layer punch together into the weakly bonded residual soil, without the failure of the cemented layer, and (b) the artificially cemented layer fails. The combination of two traditional methods for predicting bearing capacity in soils was successfully applied considering the shape (and geometry) of the improved layer and the existence (or not) of interaction of the lateral of the cemented layers and the residual soil. Finally, this study highlights the importance of considering the shapes and sizes of soil-cement layers in the bearing capacity estimation (combining analytical solutions) of spread footings resting on treated layers above weakly bonded residual soils. |
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Consoli, Nilo CesarMoreira, Eclesielter BatistaFestugato, LucasMiguel, Gustavo Dias2022-10-04T05:01:16Z20201980-9743http://hdl.handle.net/10183/249688001150642The practice of soil-cement reinforced layers to bear shallow foundations is a feasible option in low bearing capacity soils. This paper addresses the interpretation of plate load tests bearing on compacted artificially cemented sand layers of distinct sizes and shapes (cylindrical and prismatic) overlaying a weakly bonded residual soil stratum. Static load tests were carried out on a rigid circular steel plate (diameter of 300-mm) resting on sand-cement reinforced layers with distinct areas (diameters/widths of 450, 600, and 900-mm) and constant thickness of 300-mm. The results have shown two distinct failure modes that rely on the cemented layer’s diameter/width: (a) the steel plate and the artificially cemented layer punch together into the weakly bonded residual soil, without the failure of the cemented layer, and (b) the artificially cemented layer fails. The combination of two traditional methods for predicting bearing capacity in soils was successfully applied considering the shape (and geometry) of the improved layer and the existence (or not) of interaction of the lateral of the cemented layers and the residual soil. Finally, this study highlights the importance of considering the shapes and sizes of soil-cement layers in the bearing capacity estimation (combining analytical solutions) of spread footings resting on treated layers above weakly bonded residual soils.application/pdfengSoils and rocks: international journal of geotechnical and geoenvironmental engineering. São Paulo, SP. Vol. 43, no. 3, special issue (July/Sept. 2020), p. 339-349Solo residualSolo cimentadoFundações profundas (Engenharia)Artificially cemented layerGround improvementLightly bonded residual soilSpread footingsSpread footings bearing on circular and square cement-stabilized sand layers above weakly bonded residual soilinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001150642.pdf.txt001150642.pdf.txtExtracted Texttext/plain41218http://www.lume.ufrgs.br/bitstream/10183/249688/2/001150642.pdf.txt197c5bdc2a53c9c8da0706271f689e99MD52ORIGINAL001150642.pdfTexto completo (inglês)application/pdf5987107http://www.lume.ufrgs.br/bitstream/10183/249688/1/001150642.pdf09c20aafaf24a1f4bfc0d2e415209638MD5110183/2496882022-10-05 04:53:15.005138oai:www.lume.ufrgs.br:10183/249688Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2022-10-05T07:53:15Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Spread footings bearing on circular and square cement-stabilized sand layers above weakly bonded residual soil |
title |
Spread footings bearing on circular and square cement-stabilized sand layers above weakly bonded residual soil |
spellingShingle |
Spread footings bearing on circular and square cement-stabilized sand layers above weakly bonded residual soil Consoli, Nilo Cesar Solo residual Solo cimentado Fundações profundas (Engenharia) Artificially cemented layer Ground improvement Lightly bonded residual soil Spread footings |
title_short |
Spread footings bearing on circular and square cement-stabilized sand layers above weakly bonded residual soil |
title_full |
Spread footings bearing on circular and square cement-stabilized sand layers above weakly bonded residual soil |
title_fullStr |
Spread footings bearing on circular and square cement-stabilized sand layers above weakly bonded residual soil |
title_full_unstemmed |
Spread footings bearing on circular and square cement-stabilized sand layers above weakly bonded residual soil |
title_sort |
Spread footings bearing on circular and square cement-stabilized sand layers above weakly bonded residual soil |
author |
Consoli, Nilo Cesar |
author_facet |
Consoli, Nilo Cesar Moreira, Eclesielter Batista Festugato, Lucas Miguel, Gustavo Dias |
author_role |
author |
author2 |
Moreira, Eclesielter Batista Festugato, Lucas Miguel, Gustavo Dias |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Consoli, Nilo Cesar Moreira, Eclesielter Batista Festugato, Lucas Miguel, Gustavo Dias |
dc.subject.por.fl_str_mv |
Solo residual Solo cimentado Fundações profundas (Engenharia) |
topic |
Solo residual Solo cimentado Fundações profundas (Engenharia) Artificially cemented layer Ground improvement Lightly bonded residual soil Spread footings |
dc.subject.eng.fl_str_mv |
Artificially cemented layer Ground improvement Lightly bonded residual soil Spread footings |
description |
The practice of soil-cement reinforced layers to bear shallow foundations is a feasible option in low bearing capacity soils. This paper addresses the interpretation of plate load tests bearing on compacted artificially cemented sand layers of distinct sizes and shapes (cylindrical and prismatic) overlaying a weakly bonded residual soil stratum. Static load tests were carried out on a rigid circular steel plate (diameter of 300-mm) resting on sand-cement reinforced layers with distinct areas (diameters/widths of 450, 600, and 900-mm) and constant thickness of 300-mm. The results have shown two distinct failure modes that rely on the cemented layer’s diameter/width: (a) the steel plate and the artificially cemented layer punch together into the weakly bonded residual soil, without the failure of the cemented layer, and (b) the artificially cemented layer fails. The combination of two traditional methods for predicting bearing capacity in soils was successfully applied considering the shape (and geometry) of the improved layer and the existence (or not) of interaction of the lateral of the cemented layers and the residual soil. Finally, this study highlights the importance of considering the shapes and sizes of soil-cement layers in the bearing capacity estimation (combining analytical solutions) of spread footings resting on treated layers above weakly bonded residual soils. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020 |
dc.date.accessioned.fl_str_mv |
2022-10-04T05:01:16Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/249688 |
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1980-9743 |
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001150642 |
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1980-9743 001150642 |
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http://hdl.handle.net/10183/249688 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Soils and rocks: international journal of geotechnical and geoenvironmental engineering. São Paulo, SP. Vol. 43, no. 3, special issue (July/Sept. 2020), p. 339-349 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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Repositório Institucional da UFRGS |
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