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Centrifuge modelling database for dynamic response of homogeneous embankments resting on liquefiable sand layer containing fines
No full textThis is a dataset includes detailed information on accelerations, pore pressures, and displacements of two centrifuge models. These physical model reproduce a homogenous embankment constructed on liquefiable ground taking into account the presence of fines in the liquefiable layer. The liquefiable layer was prepared by a mixture of sand and non-plastic and the physical model was subjected to a sequence of seismic signals
Centrifuge Modelling database for dynamic response of homogeneous embankments resting on liquefiable clean sand layer subjected to a series of dynamic excitations
No full textThis is a dataset recorded during centrifuge tests. The provided data includes detailed information on accelerations, pore pressures, and displacements of a centrifuge model simulating an embankment constructed on liquefiable ground. The physical model was characterized by liquefiable ground soil prepared using clean Hostun sand and subjected to a sequence of seismic signals. In this dataset, the data of the repeatable test were also provided
Centrifuge data of a homogeneous embankment model resting on liquefiable soil subjected to a strong dynamic excitation - Experimental Database
No full textCentrifuge modeling is developed to investigate the behavior of a homogeneous embankment constructed on a liquefiable ground soil, which was prepared with wet under-compaction method. The physical centrifuge modeling directly highlights the response of the centrifuge model in terms of excess pore pressure, acceleration response, and model deformation. This data paper provides an overview of the centrifuge model and presents in detail the dataset that includes recorded accelerations, pore pressures, and displacementsCentrifuge modeling is developed to investigate the behavior of a homogeneous embankment constructed on a liquefiable ground soil, which was prepared with wet under-compaction method. The physical centrifuge modeling directly highlights the response of the centrifuge model in terms of excess pore pressure, acceleration response, and model deformation. This data paper provides an overview of the centrifuge model and presents in detail the dataset that includes recorded accelerations, pore pressures, and displacements
Effets des fines non plastiques sur la rupture d’un remblai induite par la liquéfaction sous séisme : modélisation numérique et physique
No full textInvestigating the behavior of embank- ment and ensuring its safety in liquefiable zones is an important topic, as is understanding the ef- fects of fines on soil liquefaction, which remain unclear and contradictory. Therefore, the goal is to study the behavior of the embankment rest- ing on the liquefiable sand ground taking into ac- count the presence of non-plastic fines. The tech- nical approach combines experimental and nu- merical methods. A series of centrifuge model tests, reproducing an embankment constructed on liquefiable soil, has been conducted. The liq- uefiable soil in these models was prepared by a mixture of sand and non-plastic fines (HN31- C500) with varying fine contents (0%, 5%, and 10%). In parallel, a numerical simulation using fi- nite element analysis was carried out using the OpenSees simulation code and PM4Sand con- stitutive model. The experimental and numerical studies show that: 1) liquefaction occurred under the free surface rather than under the embank- ment, and 2) the embankment experienced set- tlement at the crest and lateral displacements at the base. Furthermore, they demonstrate that the presence of non-plastic fine particles results in: 1) increased soil resistance and reduced lique- faction intensity, and 2) decreased deformation intensity of the embankment.L’étude du comportement du rem- blai et de sa sécurité dans les zones liquéfiable est un sujet important, tout comme la compré- hension des effets des fines particules sur la li- quéfaction des sols qui demeure contradictoire. Dans ce contexte, l’objectif général est de com- prendre le comportement des remblais suite à la liquefaction du sol de fondation en considérant la présence de fines non-plastiques dans le sol li- quéfiable. Les travaux de recherche sont basés sur deux volets : une étude expérimentale et une étude numérique, ont été entreprises. Une série de modèles réduits centrifugés reproduisant un remblai construit sur un sol liquéfiable a été étu- diée. Le sol liquéfiable dans ces modèles a été préparé par un mélange de sable et de fines non plastiques (HN31-C500) avec différentes teneurs en fines (0%, 5% et 10%). En parallèle, une simu- lation numérique par éléments finis a été élabo- rée par le code de simulation Opensees et en uti- lisant la loi de comportement PM4Sand. L’étude expérimentale et numérique montrent que : 1) la liquefaction a eu lieu dans la zone sous la sur- face libre plutôt que sous le remblai et 2) le rem- blai a subi des tassements au sommet et des déplacements latéraux à la base. De plus, elles montrent que la présence des particules fines non-plastiques entraîne : 1) l’augmentation de la résistance du sol et la réduction de l’intensité de la liquefaction et 2) la diminution de l’intensité des déformations du remblai
Effets des fines non plastiques sur la rupture d’un remblai induite par la liquéfaction sous séisme : modélisation numérique et physique
No full textInvestigating the behavior of embank- ment and ensuring its safety in liquefiable zones is an important topic, as is understanding the ef- fects of fines on soil liquefaction, which remain unclear and contradictory. Therefore, the goal is to study the behavior of the embankment rest- ing on the liquefiable sand ground taking into ac- count the presence of non-plastic fines. The tech- nical approach combines experimental and nu- merical methods. A series of centrifuge model tests, reproducing an embankment constructed on liquefiable soil, has been conducted. The liq- uefiable soil in these models was prepared by a mixture of sand and non-plastic fines (HN31- C500) with varying fine contents (0%, 5%, and 10%). In parallel, a numerical simulation using fi- nite element analysis was carried out using the OpenSees simulation code and PM4Sand con- stitutive model. The experimental and numerical studies show that: 1) liquefaction occurred under the free surface rather than under the embank- ment, and 2) the embankment experienced set- tlement at the crest and lateral displacements at the base. Furthermore, they demonstrate that the presence of non-plastic fine particles results in: 1) increased soil resistance and reduced lique- faction intensity, and 2) decreased deformation intensity of the embankment.L’étude du comportement du rem- blai et de sa sécurité dans les zones liquéfiable est un sujet important, tout comme la compré- hension des effets des fines particules sur la li- quéfaction des sols qui demeure contradictoire. Dans ce contexte, l’objectif général est de com- prendre le comportement des remblais suite à la liquefaction du sol de fondation en considérant la présence de fines non-plastiques dans le sol li- quéfiable. Les travaux de recherche sont basés sur deux volets : une étude expérimentale et une étude numérique, ont été entreprises. Une série de modèles réduits centrifugés reproduisant un remblai construit sur un sol liquéfiable a été étu- diée. Le sol liquéfiable dans ces modèles a été préparé par un mélange de sable et de fines non plastiques (HN31-C500) avec différentes teneurs en fines (0%, 5% et 10%). En parallèle, une simu- lation numérique par éléments finis a été élabo- rée par le code de simulation Opensees et en uti- lisant la loi de comportement PM4Sand. L’étude expérimentale et numérique montrent que : 1) la liquefaction a eu lieu dans la zone sous la sur- face libre plutôt que sous le remblai et 2) le rem- blai a subi des tassements au sommet et des déplacements latéraux à la base. De plus, elles montrent que la présence des particules fines non-plastiques entraîne : 1) l’augmentation de la résistance du sol et la réduction de l’intensité de la liquefaction et 2) la diminution de l’intensité des déformations du remblai
Effets des fines non plastiques sur la rupture d’un remblai induite par la liquéfaction sous séisme : modélisation numérique et physique
No full textL’étude du comportement du rem- blai et de sa sécurité dans les zones liquéfiable est un sujet important, tout comme la compré- hension des effets des fines particules sur la li- quéfaction des sols qui demeure contradictoire. Dans ce contexte, l’objectif général est de com- prendre le comportement des remblais suite à la liquefaction du sol de fondation en considérant la présence de fines non-plastiques dans le sol li- quéfiable. Les travaux de recherche sont basés sur deux volets : une étude expérimentale et une étude numérique, ont été entreprises. Une série de modèles réduits centrifugés reproduisant un remblai construit sur un sol liquéfiable a été étu- diée. Le sol liquéfiable dans ces modèles a été préparé par un mélange de sable et de fines non plastiques (HN31-C500) avec différentes teneurs en fines (0%, 5% et 10%). En parallèle, une simu- lation numérique par éléments finis a été élabo- rée par le code de simulation Opensees et en uti- lisant la loi de comportement PM4Sand. L’étude expérimentale et numérique montrent que : 1) la liquefaction a eu lieu dans la zone sous la sur- face libre plutôt que sous le remblai et 2) le rem- blai a subi des tassements au sommet et des déplacements latéraux à la base. De plus, elles montrent que la présence des particules fines non-plastiques entraîne : 1) l’augmentation de la résistance du sol et la réduction de l’intensité de la liquefaction et 2) la diminution de l’intensité des déformations du remblai.Investigating the behavior of embank- ment and ensuring its safety in liquefiable zones is an important topic, as is understanding the ef- fects of fines on soil liquefaction, which remain unclear and contradictory. Therefore, the goal is to study the behavior of the embankment rest- ing on the liquefiable sand ground taking into ac- count the presence of non-plastic fines. The tech- nical approach combines experimental and nu- merical methods. A series of centrifuge model tests, reproducing an embankment constructed on liquefiable soil, has been conducted. The liq- uefiable soil in these models was prepared by a mixture of sand and non-plastic fines (HN31- C500) with varying fine contents (0%, 5%, and 10%). In parallel, a numerical simulation using fi- nite element analysis was carried out using the OpenSees simulation code and PM4Sand con- stitutive model. The experimental and numerical studies show that: 1) liquefaction occurred under the free surface rather than under the embank- ment, and 2) the embankment experienced set- tlement at the crest and lateral displacements at the base. Furthermore, they demonstrate that the presence of non-plastic fine particles results in: 1) increased soil resistance and reduced lique- faction intensity, and 2) decreased deformation intensity of the embankment
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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