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A multidisciplinary engineering-based approach for tunnelling strengthening with a new fibre reinforced shotcrete technology

2024-05Journal article Open access
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dc.contributor.authorBarros, Joaquim
dc.contributor.authorCostelha, Hugo
dc.contributor.authorBento, David
dc.contributor.authorBrites, Nelson
dc.contributor.authorLuís, Rui
dc.contributor.authorPatrício, Hugo
dc.contributor.authorCunha, Vítor M.C.F.
dc.contributor.authorBento, Luís
dc.contributor.authorMiranda, Tiago
dc.contributor.authorCoelho, Paulo
dc.contributor.authorAzenha, Miguel
dc.contributor.authorNeves, Carlos
dc.contributor.authorSalehian, Hamidreza
dc.contributor.authorMoniz, Gonçalo
dc.contributor.authorNematollahi, Mojtaba
dc.contributor.authorTeixeira, Abel
dc.contributor.authorTaheri, Mahsa
dc.contributor.authorMezhyrych, Anton
dc.contributor.authorHosseinpour, Emad
dc.contributor.authorCorreia, Tales
dc.contributor.authorKazemi, Hamid
dc.contributor.authorHassanshahi, Omid
dc.contributor.authorRashiddel, Alireza
dc.contributor.authorEsmail, Briar
dc.date.accessioned2024-03-15T15:38:37Z
dc.date.available2024-03-15T15:38:37Z
dc.date.issued2024-05
dc.date.updated2024-03-15T11:21:22Z
dc.descriptionAcknowledgments: This study is a part of the I&DT project in co-promotion with companies ‘‘RoboShot@FRC - Robotized system for the shotcrete of optimized fibre reinforced concrete in railway tunnels’’, Co-promotion project number 47075, call 17/SI/2019. This work was partly financed by FCT / MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE), under reference UIDB/04029/2020, under the Associate Laboratory Advanced Production and Intelligent Systems ARISE under reference LA/P/0112/2020, under the R&D Unit INESC Coimbra, Advanced Robotics and Smart Factories (ROBiTECH) group, under reference UIDB/00308/2020, as well as under the Scientific Employment Stimulus - Institutional Call CEECINST/00051/2018. The authors would like to acknowledge the collaboration of Dr. Jos´e Granja and the PhD Candidate Mohamad El Sibaii on the development of the example depicted in Fig. 2.2.pt_PT
dc.description.abstractThis paper describes the relevant research activities that are being carried out on the development of a novel shotcrete technology capable of applying, autonomously and in real time, fibre reinforced shotcrete (FRS) with tailored properties regarding the optimum structural strengthening of railway tunnels (RT). This technique allows to apply fibre reinforced concrete (FRC) of strain softening (SSFRC) and strain hardening (SHFRC) according to a multi-level advanced numerical simulation that considers the relevant nonlinear features of these FRC, as well as their interaction with the surrounding soil, for an intended strengthening performance of the RT. Building information modelling (BIM) is used for assisting on the development of data files of the involved design software, integrating geometric assessment of a RT, damages from inspection and diagnosis, and the characteristics of the FRS strengthening solution. A dedicated computational tool was developed to design FRC with target properties. The preliminary experimental results on the evaluation of the relevant mechanical properties of the FRS are presented and discussed, as well as the experimental tests on the bond between FRS and current substrates found in RT. Representative numerical simulations were performed to demonstrate the structural performance of the proposed FRS-based strengthening technique. Computational tools capable of assuring, in real time, the aimed thickness of the layers forming the FRS strengthening shell were also developed. The first generation of a mechanical device for controlling the amount of fibres to be added, in real time, to the FRS mixture was conceived, built and tested. A mechanism is also being developed to improve the fibre distribution during its introduction through the mechanical device to avoid fibre balling. This work describes the relevant achievements already attained, as introduces the planned future initiatives in the scope of this project.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doihttps://doi.org/10.1016/j.tust.2024.105707pt_PT
dc.identifier.eissn1878-4364
dc.identifier.issn0886-7798
dc.identifier.other105707
dc.identifier.slugcv-prod-4002928
dc.identifier.urihttp://hdl.handle.net/10400.8/9536
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationInstitute for Sustainability and Innovation in Structural Engineering
dc.relationInstitute for Systems Engineering and Computers at Coimbra - INESC Coimbra
dc.relationNot Available
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0886779824001251?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectTunnel strengtheningpt_PT
dc.subjectFibre reinforced shotcrete (FRS) mix designpt_PT
dc.subjectExperimental characterization of FRS propertiespt_PT
dc.subjectBIMpt_PT
dc.subjectMultiscale analysis and designpt_PT
dc.subjectShotcrete automation and robotizationpt_PT
dc.titleA multidisciplinary engineering-based approach for tunnelling strengthening with a new fibre reinforced shotcrete technologypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInstitute for Sustainability and Innovation in Structural Engineering
oaire.awardTitleInstitute for Systems Engineering and Computers at Coimbra - INESC Coimbra
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04029%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00308%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC INST 2018/CEECINST%2F00051%2F2018%2FCP1566%2FCT0001/PT
oaire.citation.endPage27pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleTunnelling and Underground Space Technologypt_PT
oaire.citation.volume147pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamCEEC INST 2018
person.familyNameCostelha
person.familyNameCoelho
person.familyNameNeves
person.givenNameHugo
person.givenNamePaulo
person.givenNameCarlos
person.identifier2068530
person.identifier0000000133901858
person.identifier.ciencia-id931E-2249-DBA3
person.identifier.ciencia-id3818-FA4F-CC36
person.identifier.ciencia-idDC15-E18A-8C59
person.identifier.orcid0000-0003-0063-8592
person.identifier.orcid0000-0002-4383-0472
person.identifier.orcid0000-0003-1733-3648
person.identifier.ridV-4722-2017
person.identifier.ridV-1924-2018
person.identifier.ridF-4684-2014
person.identifier.scopus-author-id24775187600
person.identifier.scopus-author-id57128835100
person.identifier.scopus-author-id26768153200
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.cv.cienciaid931E-2249-DBA3 | Hugo Costelha
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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