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  • Standard penetration testing in a virtual calibration chamber 

    Zhang, Ningning; Arroyo Alvarez de Toledo, Marcos; Ciantia, Matteo Oryem; Gens Solé, Antonio; Butlanska, Joanna (Elsevier, 2019-07)
    Article
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    The virtual calibration chamber technique, based on the discrete element method, is here applied to study the standard penetration test (SPT). A macro-element approach is used to represent a rod driven with an impact like ...

  • Tensile strength during drying of remoulded and compacted clay: the role of fabric and water retention 

    Trabelsi, Houcem; Romero Morales, Enrique Edgar; Jamei, Mehrez (2018-09)
    Article
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    The paper presents an experimental investigation on the tensile strength of an unsaturated clay, both in remoulded and compacted states. To complete the experimental study, a new apparatus was designed with the purpose of ...

  • The effect of thermal cycles on limestone mechanical degradation 

    Villarraga Díaz, C. J.; Gasc Barbier, M.; Vaunat, Jean; Darrozes, José (Elsevier, 2018-09)
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    This work presents the results of an experimental program performed to study the effect of long series of moderate thermal cycles on the mechanical response of a limestone rock. Samples were exposed to more than 1000 ...

  • Nonlocal plasticity modelling of strain localisation in stiff clays 

    Mánica Malcom, Miguel Ángel; Gens Solé, Antonio; Vaunat, Jean; Ruíz, Daniel F. (Elsevier, 2018-11)
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    The paper addresses the numerical simulation of strain localisation in stiff clays that exhibit softening behaviour. An elastoplastic constitutive model developed to incorporate key features of stiff clay behaviour is ...

  • Sphericity measures of sand grains 

    Rorato, Riccardo; Arroyo Alvarez de Toledo, Marcos; Andò, Edward; Gens Solé, Antonio (2019-05)
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    The sphericity of a grain should measure the similitude of its shape with that of a sphere. Sphericity is a shape descriptor of long-standing interest for sedimentology. Now it has gained also interest to facilitate discrete ...

  • Low-order stabilized finite element for the full Biot formulation in soil mechanics at finite strain 

    Monforte Vila, Lluís; Navas, Pedro; Carbonell Puigbó, Josep Maria; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (2019-05)
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    This article presents a novel finite element formulation for the Biot equation using low-order elements. Additionally, an extra degree of freedom is introduced to treat the volumetric locking steaming from the effective ...

  • Assessment of a high-level spent nuclear fuel disposal model 

    Rodríguez Dono, Alfonso; Olivella Pastallé, Sebastià; Mokni, Nadia (2018-08)
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    This paper assesses a model for the full-scale engineered barrier experiment (Febex) in situ test, simulating the disposal of heat-emitting, high-level spent nuclear fuel. The model has been developed using Code_Bright and ...

  • Geomechanical response of fractured reservoirs 

    Zareidarmiyan, Ahmad; Salaridad, Hossein; Vilarrasa Riaño, Víctor; De Simone, Silvia; Olivella Pastallé, Sebastià (2018-12)
    Article
    Open Access
    Geologic carbon storage will most likely be feasible only if carbon dioxide (CO2) is utilized for improved oil recovery (IOR). The majority of carbonate reservoirs that bear hydrocarbons are fractured. Thus, the geomechanical ...

  • Numerical and experimental study of initiation and propagation of desiccation cracks in clayey soils 

    Levatti, Hector Ulises; Prat Catalán, Pere; Ledesma Villalba, Alberto (Elsevier, 2019-01)
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    This paper presents the fundamentals and the mathematical formulation to study desiccation cracking in soils based on Unsaturated Soil Mechanics as well as a numerical analysis of a previous desiccation test program. The ...

  • Effect of partial substitution of highly reactive mineral additions by nanosilica in cement pastes 

    da Silva Rego, Joao Henrique; Frias Rojas, Moises; Moragues Terrades, Amparo; Fernández Carrasco, Lucía; Romero Morales, Enrique Edgar; Sanchez de Rojas, Maria Isabel (2019-01)
    Article
    Open Access
    The phenomena involved in portland cement hydration and interactions with nanosilica are very complex and not yet fully understood. In addition, few papers have currently proposed to investigate the microstructure and ...

  • Toronto-York Spadina subway extension tunnelling under Schulich Building 

    Ramos Schneider, Gonzalo; García Molina, Ángel; Ledesma Villalba, Alberto; Raveendra, Ravi; Polo Orodea, Tomás (2019-02)
    Article
    Open Access
    Tunnelling under the York University Schulich Building was one of the milestones of the Toronto-York Spadina Subway Extension Project. The challenge was to bore the tunnel under a flagship building only one diameter below ...

  • The collapse of Space building 

    Caicedo Hormaza, Bernardo; Alonso Pérez de Agreda, Eduardo; Mendoza, C.; Alcoverro Bassols, Jordi (2019-03)
    Article
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    On 12 October 2013, the 24-storey high ‘Space’ building collapsed in Medellín, Colombia. The building had a reinforced concrete structure founded on large-diameter piles with enlarged bases. During and after construction ...

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