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Título:	Estimation of Parameters in Geotechnical Backanalysis: II. Application to a Tunnel Excavation Problem
Autor/a:	Gens Solé, Antonio; Ledesma Villalba, Alberto; Alonso Pérez de Agreda, Eduardo
Otros autores:	Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica
Abstract:	A general statistical framework to perform backanalysis in geotechnical problems from field instrumentation has been presented in a companion paper. Here, an application to a real case involving the excavation of a tunnel in stiff overconsolidated clay is described. Both, extensometer and inclinometer measurements are used as input data and elastic moduli of the ground and the value of the Ko coeficient are estimated. The finite element method is used as the computational procedure to solve the direct problem, and has been coupled to the identification algorithm as described in the companion paper. In addition, a discussion on the reliability of the parameters identified is presented.
Abstract:	Peer Reviewed
Materia(s):	-Tunnels -Parameter estimation -Finite element method -geotechnical parameters -probabilistic methods -finite element method -tunnelling -Túnels -- Excavacions -Paràmetres (Matemàtica) -- Identificació -Mètode dels elements finits
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Tipo de documento:	Artículo
Editor:	Elsevier
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