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    CONSTITUTIVE BEHAVIOUR AND NUMERICAL MODELLING

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    In the chapter, first the equation governing the stress analysis problem for the elastic one phase (solid) continuum are recalled. Then various types of linear and non linear, time independent and time dependent constitutive laws are illustrated with particular reference to those proposed for modelling the mechanical behaviour of rocks and soils. The basis of some approaches for numerical stress analysis are subsequently recalled and, finally, the finite element formulation for linear, elastoplastic and visco-plastic stress analyses are discussed in some details

    Application of Numerical Methods to Geotechnical Problems

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    Proceedings of the 4th European Conference on Numerical Methods in Geotechnical Engineering (October 14-16, 1998, Udine, Italy) TABLE OF CONTENTS Main Sessions: Invited Lectures.- Interpretation of Field Measurements and of Small Scale Tests.- Laboratory Test and Constitutive Modelling.- Numerical Algorithms and Theoretical Aspects.- Miscellaneous.- Late Papers

    Editorial

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    Summary of the contributions presented in issue EG3; call for submitting manuscripts on: 1. problems relevant to the architecture, built environment and construction engineering (ABC) area; 2. recent advances in technologies, as for instance those adopted in supporting excavation boundaries, in using geothermal resources for the heating/cooling plants installed in buildings and in monitoring surface settlements over large areas and 3. the interpretation of field measurements, or back analysis, for updating the estimation of geomechanical parameters

    Finite element prediction of the effects of faulting on a shallow tunnel

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    A numerical estimation is presented of the effects induced in an existing tunnel by the development of a fault from the deep bedrock. The spreading of the fault within the alluvial deposit hosting the tunnel, and the consequent effects on its permanent liner and at the surface of the soil deposit, are studied in static conditions through a series of elastic-plastic, plane strain finite element analyses. They account for the reduction of the shear strength and stiffness characteristics of the faulting zone with increasing irreversible strains
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