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dc.contributor.authorAceituno Cieri, Paula
dc.contributor.authorMartino, Roberto D.
dc.contributor.authorGiambastiani, Mauricio
dc.contributor.authorRocca, Ricardo J.
dc.date.accessioned2023-02-10T14:38:53Z
dc.date.available2023-02-10T14:38:53Z
dc.date.issued2014
dc.identifier.urihttp://hdl.handle.net/11086/546121
dc.description.abstractThe Sierra de Valle Fertil is located in the west of Argentina (San Juan province). It is crossed by the National Road 150, that has 40 km in length including six bidirectional road tunnels with a total length of 2000 meters. The geological formations are various Carbonic Permian (Paganzo Basin) and Triassic (Ischigualasto-Villa Union Basin) sedimentary rocks, in an area adjacent to the Ischigualasto Natural Park. The Sierra has been formed by the reactivation of the basin during the formation of the Andes (Pliocene-Pleistocene) with a thick-skinned tectonics. The trace of the route follows a creek that cuts anticlinal folds. The first three tunnels are developed through soft sandstones with siltstones and shales (middle Triassic). The two following slightly cemented sandstones and conglomerates (Lower Triassic) and the last is in rigid greywackes (upper Carbonic). The support provided by the design was estimated by using RMR and Q method. During construction geological surveys were conducted on the front as it was excavated, and expected support was adjusted according to them. Different failure modes observed in rigid and soft rock are analyzed together with the solutions provided during construction. The tunnels excavated in stiff rocks were less demanding than those provided for in the design. Instead, the tunnels in soft rocks required more supports than those stipulated in the design.es
dc.format.mediumImpreso
dc.language.isoenges
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 International*
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/*
dc.subjectSedimentary rockes
dc.subjectGeological formationses
dc.subjectthe Andes (Pliocene-Pleistocene)es
dc.subjectCarbonic Permianes
dc.subjectTriassices
dc.titleFailure Modes in Road Tunnels of Sierra Valle Fertil. San Juan. Argentinaes
dc.typeconferenceObjectes
dc.description.filFil: Aceituno Cieri, Paula. Dirección Nacional de Vialidad. San Juan; Argentina.es
dc.description.filFil: Martino, Roberto D. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina.es
dc.description.filFil: Giambastiani, Mauricio. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina.es
dc.description.filFil: Rocca, Ricardo J. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina.es
dc.description.fieldIngeniería Civil
dc.conference.cityGoiania
dc.conference.countryBrasil
dc.conference.editorialCBMR-ABMS
dc.conference.eventISRM Specialized Conference
dc.conference.eventcityGoainia
dc.conference.eventcountryBrasil
dc.conference.eventdate2014-9
dc.conference.institutionComite Brasileño de Mecanica de Rocas
dc.conference.journalRock Mechanics for Natural Resources and Infrastructure
dc.conference.publicationLibro
dc.conference.workArtículo Completo
dc.conference.typeCongreso


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