Tricarico, Michele (2015) Centrifuge Modelling of Flexible Retaining Walls in Saturated Sand under Seismic Actions. [Tesi di dottorato]

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Item Type: Tesi di dottorato
Lingua: English
Title: Centrifuge Modelling of Flexible Retaining Walls in Saturated Sand under Seismic Actions.
Creators:
CreatorsEmail
Tricarico, Michelemichele.tricarico159@gmail.com
Date: 31 March 2015
Number of Pages: 427
Institution: Università degli Studi di Napoli Federico II
Department: Ingegneria Civile, Edile e Ambientale
Scuola di dottorato: Ingegneria civile
Dottorato: Ingegneria geotecnica
Ciclo di dottorato: 26
Coordinatore del Corso di dottorato:
nomeemail
Mancuso, Claudiomancuso@unina.it
Tutor:
nomeemail
Aversa, StefanoUNSPECIFIED
Date: 31 March 2015
Number of Pages: 427
Uncontrolled Keywords: Cantrifuge Modelling, Flexible Retaining Walls, Pseudostatic Analysis, Liquefaction of Sand.
Settori scientifico-disciplinari del MIUR: Area 08 - Ingegneria civile e Architettura > ICAR/07 - Geotecnica
Date Deposited: 08 Apr 2015 10:51
Last Modified: 14 Oct 2015 12:41
URI: http://www.fedoa.unina.it/id/eprint/10405
DOI: 10.6092/UNINA/FEDOA/10405

Abstract

In this work the seismic behaviour of flexible retaining walls embedded in saturated sand has been inevstigate carring out a total of seven centrifuge tests at the Schofield Centre of University of Cambridge. The head of piezometric fluid has been collocated at the excavated level. Two possible structural configurations have been chosen: cantilever walls and walls with one level of props at the top. The results have been examined in detail in terms of the monitored physical quantities: acceleration in the soil, walls displacements, pore pressures, bending moment and axial force in the props when present. Focus is made on amplification phenomena, phase difference in the accelerations, developing of pore pressures and related decrease of soil shearing resistance, collapse mechanism of the walls, entity of accumulated displacements and changing in bending moment distribution. A further level of interpretation has been represented by the comparison of the results with respect tests performed on similar models in dry sand and the prevision of bending moment with Limit Equilibrium Analyses. In the last Chapter the calibration of an advanced constitutive model is carried out.

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