Mechanistic-empirical permanent deformation models: laboratory testing, modelling and ranking
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/70053 |
Resumo: | Geomaterials exhibit elastoplastic behaviour during dynamic and repeated loading conditions. These loads are induced by the passage of a train or vehicle which then generates recoverable (resilient) deformation and/or permanent (plastic) deformation. Modelling this behaviour is still a challenge for geotechnical engineers as it implies the understanding of the complex deformation mechanism and application of advanced constitutive models. This paper reviews on the major causes of permanent deformation and the factors that influence the long-term performance of materials. It will also present the fundamental concepts of permanent deformation as well as the models and approaches used to characterise this behaviour, including: elastoplastic models, shakedown theory and mechanistic-empirical permanent deformation models. This paper will focus on the mechanistic-empirical approach and highlight the evolution of the models, and the main similarities and differences between them. A comparison between several empirical models as well as the materials used to develop the models is also discussed. These materials are compared by considering the reference conditions on the type of material and its physical state. This approach allows for an understanding of which properties can influence the performance of railway subgrade and pavement structures, as well as the main variables used to characterise this particular behaviour. An innovative ranking of geomaterials that relate to the expected permanent deformation and classification (UIC and ASTM) of soil is also discussed because it can be used as an important tool for the design process. |
id |
RCAP_732543a2a8b4cac2e94fc5dc741297a4 |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/70053 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Mechanistic-empirical permanent deformation models: laboratory testing, modelling and rankingModellingPermanent deformationLaboratory testsRankingTriaxial testsSoilsGranular materialsMechanistic-empirical permanent deformation modelsEngenharia e Tecnologia::Engenharia CivilScience & TechnologyGeomaterials exhibit elastoplastic behaviour during dynamic and repeated loading conditions. These loads are induced by the passage of a train or vehicle which then generates recoverable (resilient) deformation and/or permanent (plastic) deformation. Modelling this behaviour is still a challenge for geotechnical engineers as it implies the understanding of the complex deformation mechanism and application of advanced constitutive models. This paper reviews on the major causes of permanent deformation and the factors that influence the long-term performance of materials. It will also present the fundamental concepts of permanent deformation as well as the models and approaches used to characterise this behaviour, including: elastoplastic models, shakedown theory and mechanistic-empirical permanent deformation models. This paper will focus on the mechanistic-empirical approach and highlight the evolution of the models, and the main similarities and differences between them. A comparison between several empirical models as well as the materials used to develop the models is also discussed. These materials are compared by considering the reference conditions on the type of material and its physical state. This approach allows for an understanding of which properties can influence the performance of railway subgrade and pavement structures, as well as the main variables used to characterise this particular behaviour. An innovative ranking of geomaterials that relate to the expected permanent deformation and classification (UIC and ASTM) of soil is also discussed because it can be used as an important tool for the design process.This work was partially carried out under the framework of In2Track, a research project of Shift2Rail. It was also supported by FCT - “Fundação para a Ciência e a Tecnologia” - PD/BD/127814/2016. The Authors also wish to acknowledge the collaboration among them through the scheme of Industrial Transformation Training Centre for advancing track infrastructure (ITTC-Rail, IC170100006), funded by the Australian Research Council.ElsevierUniversidade do MinhoRamos, AnaCorreia, A. GomesIndraratna, BuddhimaNgo, TrungCalçada, RuiCosta, Pedro Alves2020-01-282020-01-28T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/70053engRamos, A., Gomes Correia, A., Indraratna, B., Ngo, T., Calçada, R., Costa, P.A. Mechanistic-empirical permanent deformation models: Laboratory testing, modelling and ranking (2020) Transportation Geotechnics, 23, art. no. 1003262214-39122214-391210.1016/j.trgeo.2020.100326https://www.sciencedirect.com/science/article/pii/S2214391219304994info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-10-07T01:20:16Zoai:repositorium.sdum.uminho.pt:1822/70053Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:47:24.621805Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Mechanistic-empirical permanent deformation models: laboratory testing, modelling and ranking |
title |
Mechanistic-empirical permanent deformation models: laboratory testing, modelling and ranking |
spellingShingle |
Mechanistic-empirical permanent deformation models: laboratory testing, modelling and ranking Ramos, Ana Modelling Permanent deformation Laboratory tests Ranking Triaxial tests Soils Granular materials Mechanistic-empirical permanent deformation models Engenharia e Tecnologia::Engenharia Civil Science & Technology |
title_short |
Mechanistic-empirical permanent deformation models: laboratory testing, modelling and ranking |
title_full |
Mechanistic-empirical permanent deformation models: laboratory testing, modelling and ranking |
title_fullStr |
Mechanistic-empirical permanent deformation models: laboratory testing, modelling and ranking |
title_full_unstemmed |
Mechanistic-empirical permanent deformation models: laboratory testing, modelling and ranking |
title_sort |
Mechanistic-empirical permanent deformation models: laboratory testing, modelling and ranking |
author |
Ramos, Ana |
author_facet |
Ramos, Ana Correia, A. Gomes Indraratna, Buddhima Ngo, Trung Calçada, Rui Costa, Pedro Alves |
author_role |
author |
author2 |
Correia, A. Gomes Indraratna, Buddhima Ngo, Trung Calçada, Rui Costa, Pedro Alves |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Ramos, Ana Correia, A. Gomes Indraratna, Buddhima Ngo, Trung Calçada, Rui Costa, Pedro Alves |
dc.subject.por.fl_str_mv |
Modelling Permanent deformation Laboratory tests Ranking Triaxial tests Soils Granular materials Mechanistic-empirical permanent deformation models Engenharia e Tecnologia::Engenharia Civil Science & Technology |
topic |
Modelling Permanent deformation Laboratory tests Ranking Triaxial tests Soils Granular materials Mechanistic-empirical permanent deformation models Engenharia e Tecnologia::Engenharia Civil Science & Technology |
description |
Geomaterials exhibit elastoplastic behaviour during dynamic and repeated loading conditions. These loads are induced by the passage of a train or vehicle which then generates recoverable (resilient) deformation and/or permanent (plastic) deformation. Modelling this behaviour is still a challenge for geotechnical engineers as it implies the understanding of the complex deformation mechanism and application of advanced constitutive models. This paper reviews on the major causes of permanent deformation and the factors that influence the long-term performance of materials. It will also present the fundamental concepts of permanent deformation as well as the models and approaches used to characterise this behaviour, including: elastoplastic models, shakedown theory and mechanistic-empirical permanent deformation models. This paper will focus on the mechanistic-empirical approach and highlight the evolution of the models, and the main similarities and differences between them. A comparison between several empirical models as well as the materials used to develop the models is also discussed. These materials are compared by considering the reference conditions on the type of material and its physical state. This approach allows for an understanding of which properties can influence the performance of railway subgrade and pavement structures, as well as the main variables used to characterise this particular behaviour. An innovative ranking of geomaterials that relate to the expected permanent deformation and classification (UIC and ASTM) of soil is also discussed because it can be used as an important tool for the design process. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-28 2020-01-28T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/1822/70053 |
url |
https://hdl.handle.net/1822/70053 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ramos, A., Gomes Correia, A., Indraratna, B., Ngo, T., Calçada, R., Costa, P.A. Mechanistic-empirical permanent deformation models: Laboratory testing, modelling and ranking (2020) Transportation Geotechnics, 23, art. no. 100326 2214-3912 2214-3912 10.1016/j.trgeo.2020.100326 https://www.sciencedirect.com/science/article/pii/S2214391219304994 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799132232548352000 |