Now showing items 21-40 of 308

    • A pressuremeter-based evaluation of structure in London Clay using a kinematic hardening constitutive model 

      Rouainia, M.; Panayides, Stelios; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (Springer, 2020-08)
      Article
      Open Access
      The self-boring pressuremeter (SBP) test was designed to measure in situ engineering properties of the ground with a relatively small amount of disturbance. The properties that may be inferred from the test depend on the ...
    • A review of expansive phenomena in Wagenburg North Tunnel 

      Berdugo de Moya, Iván Rafael; Alonso Pérez de Agreda, Eduardo; Romero Morales, Enrique Edgar; Gens Solé, Antonio; Albis, María (2009-12-31)
      Article
      Open Access
      The paper deals on tunnelling and swelling in anhydritic-gypsiferous claystones. The geology of the Gipskeuper in Baden-Württemberg (Germany) and the phenomenology of expansions in Wagenburg North tunnel are described. ...
    • A simplified procedure to assess the dynamic stability of a caisson breakwater 

      Madrid, R.; Gens Solé, Antonio; Alonso Pérez de Agreda, Eduardo; Tarrago, Dani (2013)
      Conference report
      Restricted access - publisher's policy
      The paper describes a simplified method of analysis used to evaluate the stability of a caisson breakwater to sea wave actions. An intensive laboratory program was performed in order to evaluate the static and dynamic ...
    • A soft-rock model for cement-improved clays 

      Arroyo Alvarez de Toledo, Marcos; Ciantia, Matteo Oryem; Castellanza, R.; Gens Solé, Antonio (IOS Press, 2011)
      Conference report
      Restricted access - publisher's policy
    • A stable mesh-independent approach for numerical modelling of structured soils at large strains 

      Monforte Vila, Lluís; Ciantia, Matteo Oryem; Carbonell Puigbó, Josep Maria; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (Elsevier, 2019-12)
      Article
      Open Access
      We describe the large strain implementation of an elasto-plastic model for structured soils into G-PFEM, a code developed for geotechnical simulations using the Particle Finite Element Method. The constitutive model is ...
    • A structured constitutive model for simulating the behaviour of an overconsolidated bonded clay 

      González, Nubia A.; Gens Solé, Antonio; Arroyo Alvarez de Toledo, Marcos; Rouainia, Mohamed (CIMNE, 2011)
      Conference report
      Open Access
      The paper presents some improvements in the formulation of a kinematic hardening constitutive soil model incorporating structure initially proposed for soft clays. For the modelling of overconsolidated bonded clay the ...
    • A structured constitutive model for simulating the behaviour of an overconsolidated bonded clay 

      González, Nubia Aurora; Gens Solé, Antonio; Arroyo Alvarez de Toledo, Marcos; Rouainia, Mohamed (Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2011)
      Conference report
      Open Access
      The paper presents some improvements in the formulation of a kinematic hardening constitutive soil model incorporating structure initially proposed for soft clays. For the modelling of overconsolidated bonded clay the ...
    • A subloading surface clay and sand model 

      Pinedo Vilcahuamán, Paul José; Monforte Vila, Lluís; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (2023)
      Conference report
      Open Access
      The mechanical response of natural soils is characterized by a narrow elastic domain, a smooth transition between elastic to elasto-plastic regime, and hysteretic behaviour during cyclic loading. These realistic features ...
    • A time-dependent anisotropic model for argillaceous rocks: application to an underground excavation in Callovo-Oxfordian claystone 

      Mánica Malcom, Miguel Ángel; Gens Solé, Antonio; Vaunat, Jean; Ruiz Restrepo, Daniel Felipe (2017-05)
      Article
      Open Access
      The paper presents a constitutive model for argillaceous rocks, developed within the framework of elastoplasticity, that includes a number of features that are relevant for a satisfactory description of their hydromechanical ...
    • An Approach to enhance efficiency of DEM modelling of soils with crushable grains 

      Ciantia, Matteo Oryem; Arroyo Alvarez de Toledo, Marcos; Calvetti, Francesco; Gens Solé, Antonio (Thomas Telford, 2015-02)
      Article
      Open Access
      In this study oedometric compression tests of hydrocarbon coke, Fontainebleau sand and silica sand are simulated in three dimensions using breakable particles. The method adapts a rigorous breakage criterion for elasto-brittle ...
    • An effective combined framework for modelling the time-dependent behaviour of soft structured clays 

      Mánica Malcom, Miguel Ánge; Gens Solé, Antonio; Ovando-Shelley, Efrain; Jaramillo, Eduardo Botero; Vaunat, Jean (Springer, 2021-02)
      Article
      Open Access
      A constitutive framework for the simulation of the time-dependent behaviour of soft structured clays has been developed from the combination of a number of existing modelling approaches. The formulation accounts, in a ...
    • An elastoplastic model for the THM analysis of freezing soils 

      Satoshi, Nishimura; Gens Solé, Antonio; Olivella Pastallé, Sebastià; Jardine, Richard (2009)
      Conference report
      Open Access
      By employing a combination of ice pressure, liquid pressure and total stress as state variables, a new thermoplastic constitutive model has been developed that encompasses frozen and unfrozen behaviour within a unified ...
    • An interior - point algorithm for hyper-plastic models for soils 

      Samat, Sergio; Vaunat, Jean; Gens Solé, Antonio (2009)
      Conference report
      Open Access
      In numerical analysis of geotechnical problems it is often necessary to use sophisticated elastoplastic constitutive models. Particularly, the presence of friction as the fundamental mechanism to dissipate energy provides ...
    • An unconditionally stable explicit finite element algorithm for coupled hydromechanical problems of soil mechanics in pseudo-static conditions 

      Monforte Vila, Lluís; Carbonell Puigbó, Josep Maria; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (2022-11)
      Article
      Open Access
      In this article, we present a novel explicit time-integration algorithm for the coupled hydromechanical soil mechanics problems in a pseudo-static regime. After introducing the finite element discretization, the semidiscrete ...
    • An underground excavation in Barcelona and its interaction with existing structures 

      Mariano, Alessandra di; Varga, Annamaria; Gens Solé, Antonio (Taylor & Francis Group, 2021)
      Part of book or chapter of book
      Restricted access - publisher's policy
      The construction process for the enlargement of an underground railway station in Barcelona required an additional tunnel excavation below existing structures. The paper presents the case study, describing the details of ...
    • Analysis of a full scale in situ test simulating repository conditions 

      Gens Solé, Antonio; García Molina, Ángel; Olivella Pastallé, Sebastià; Alonso Pérez de Agreda, Eduardo; Huertas, F. (Wiley, 1998)
      Article
      Open Access
      Coupled thermo-hydro-mechanical (THM) analyses have been used to examine the interacting phenomena associated with the simultaneous heating and hydration of an engineered bentonite barrier placed in a drift excavated in ...
    • Analysis of cone penetration in brittle liquefiable soils 

      Monforte Vila, Lluís; Gens Solé, Antonio; Arroyo Alvarez de Toledo, Marcos; Mánica Malcom, Miguel Ángel; Carbonell Puigbó, Josep Maria (Elsevier, 2021-06)
      Article
      Open Access
      The paper presents a comprehensive set of simulations of the cone penetration test with pore pressure measurements (CPTu test) in brittle, potentially liquefiable, soils using advanced numerical techniques. The large ...
    • Analysis of ground movements induced by diaphragm wall installation 

      Garitte, Benoit; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (CRC Press, 2010)
      Conference report
      Restricted access - publisher's policy
      The construction process of diaphragm walls can lead to movements in the surrounding area that are seldom taken into account. However, these movements may be important in situations where soft soils dominate. In this ...
    • Analysis of strain localization with a non-local plasticity model 

      Mánica Malcom, Miguel Ángel; Gens Solé, Antonio; Vaunat, Jean; Ruiz Restrepo, Daniel Felipe (2017)
      Conference report
      Open Access
      Strain localization can be defined as the accumulation of deformations in narrow zones, in the form of shear bands or cracks, commonly observed in several geomaterials like concrete, rocks, dense sands, or stiff fine-grained ...
    • Analysis of strain localization with a nonlocal plasticity model 

      Mánica, Miguel A.; Gens Solé, Antonio; Vaunat, Jean; Ruiz, Daniel F. (CIMNE, 2017)
      Conference report
      Open Access
      In the present paper a nonlocal plasticity model is described, intended to reproduce the mechanical behaviour of stiff fine-grained soils, including the objective simulation of strain localization; the phenomenon of accumulation ...