Now showing items 1-20 of 64

  • 3D modelling of reinforced soil walls 

    Puig Damians, Ivan; Bathurst, Richard; Olivella Pastallé, Sebastià; Lloret Morancho, Antonio; Josa Garcia-Tornel, Alejandro (2017)
    Conference report
    Open Access
    This report summarizes the scope and conclusions of a 3D numerical modelling analysis of mechanically stabilized earth (MSE) walls constructed with concrete panels and strip reinforcement. These systems pose numerical ...
  • Análisis del comportamiento de terraplenes conformados con materiales potencialmente expansivos 

    Ortega, J.I.; Lloret Morancho, Antonio; Olivella Pastallé, Sebastià; Romero Morales, Enrique Edgar (Centro de Estudios y Experimentación de Obras Públicas (CEDEX), 2009)
    Conference report
    Restricted access - publisher's policy
    Los progresos alcanzados en la moderna Mecánica del Suelo No Saturado han permitido el desarrollo de nuevos métodos de análisis de la respuesta de explanadas y terraplenes frente a cambios ambientales (lluvia, temperatura, ...
  • Análisis numérico de los esfuerzos verticales en el paramento de un muro de tierra reforzada en suelo diabásico 

    Puig Damians, Ivan; Josa Garcia-Tornel, Alejandro; Albuquerque, P.J.R.; Lloret Morancho, Antonio; Ledesma Villalba, Alberto; de Santos, C. (2011)
    Conference lecture
    Open Access
    The paper presents a numerical analysis of the service behaviour of a reinforced soil wall constructed in a diabasic soil. A 2D model developed through the Finite Element Method (FEM) using the commercial computer software ...
  • Analysis of vertical facing panel-joint gap in reinforced soil walls 

    Puig Damians, Ivan; Bathurst, Richard; Josa Garcia-Tornel, Alejandro; Lloret Morancho, Antonio; Lima, Juan (International Geosynthetics Society (IGS), 2017)
    Conference report
    Restricted access - publisher's policy
    This paper extends the numerical parametric study previously reported by the writers for the vertical load distribution and vertical gap compression between facing panel units in steel reinforced soil walls ranging in ...
  • Anisotropic behaviour of compacted clayey silt subjected to hydromechanical paths 

    Buenfil, Carlos; Romero Morales, Enrique Edgar; Lloret Morancho, Antonio; Gens Solé, Antonio (E3S Web of Conferences, 2016)
    Conference lecture
    Open Access
    Compaction induces anisotropy on soil deformational response due to preferential straining associated with the fabrication process. An experimental insight into the stress-strain response of Barcelona clayey silt is provided ...
  • Assessment of the use of the vapour equilibrium technique in controlled-suction tests 

    Pintado Llurba, Xavier; Lloret Morancho, Antonio; Romero Morales, Enrique Edgar (2009-04)
    Article
    Restricted access - publisher's policy
    This paper presents a study on suction control methodology using the vapour equilibrium technique. To reduce the time needed to reach equilibrium, humid air is forced to flow through the sample boundaries. An analysis of ...
  • Benchmarking selection of parameter values for the Barcelona basic model 

    D'Onza, Francesca; Wheeler, S. J.; Gallipoli, Domenico; Hofmann, M.; Lloret Cabot, Marti; Lloret Morancho, Antonio; Mancuso, C.; Pereira, J.M.; Romero Morales, Enrique Edgar; Toll, D. G.; Vassallo, R. (2015-09)
    Article
    Open Access
    Seven teams took part in a benchmarldng exercise on selection of parameter values for the Barcelona Basic Model (BBM) from experimental data on an unsaturated soil. All teams were provided with experimental results from 9 ...
  • Bentonite strain due to cyclic suction changes 

    Villar Galicia, María Victoria; Lloret Morancho, Antonio (The Hong Kong University of Science and Technology (HKUST), 2018)
    Conference lecture
    Open Access
    A series of suction-controlled oedometer tests were performed on a highly compacted bentonite following drying/wetting and wetting/drying paths from the initial hygroscopic conditions (about 120 MPa) under low vertical ...
  • Caracterización de los parámetros de elasticidad para arcillas limosas compactadas usando 'Particle Image Velocimetry (PIV)' 

    Ruiz, Álvaro; Lloret Morancho, Antonio (Sociedad Española de Mecánica del Suelo e Ingeniería Geotécnica, 2016)
    Conference lecture
    Restricted access - publisher's policy
    Debido a las dificultades experimentales en la medición de los cambios de volumen en los suelos no satura- dos, hay una falta en el conocimiento de los efectos de las variables de compactación (contenido de agua y densidad ...
  • Caracterización y comportamiento hidro-mecánico de un limo arcilloso compactado 

    Buenfil, Carlos; Romero Morales, Enrique Edgar; Lloret Morancho, Antonio (2016)
    Conference report
    Restricted access - publisher's policy
    Se presentan resultados de un estudio experimental del acoplamiento hidromecánico de un limo arcilloso de baja plasticidad ligeramente compactado, sometido a compresión isótropa bajo succión controlada. Los ensayos se han ...
  • Characterising the collapsible response of an in-situ compacted silt 

    Gómez Bonilla, Rodrigo Andrés; Romero Morales, Enrique Edgar; Lloret Morancho, Antonio; Suriol Castellví, Josep (CRC Press, 2009)
    Part of book or chapter of book
    Restricted access - publisher's policy
    The paper presents selected experimental results of the microstructure, the hydro-mechanical properties and the volume change response along wetting and drying paths of a compacted silt. The material was recovered from a ...
  • Comparison of finite element and finite difference modelling results with measured performance of a reinforced soil wall 

    Puig Damians, Ivan; Bathurst, Richard; Josa Garcia-Tornel, Alejandro; Lloret Morancho, Antonio (2014)
    Conference report
    Restricted access - publisher's policy
    The performance of a metallic reinforced soil segmental retaining wall is examined in a systematic manner using two numerical modelling approaches. Finite element modelling was carried out using the commercial program ...
  • Comportamiento deformacional del suelo no saturado bajo condiciones drenadas y no drenadas 

    Lloret Morancho, Antonio (Universitat Politècnica de Catalunya, 1982-07-12)
    Doctoral thesis
    Open Access
    Se ha elaborado un modelo general para la consolidación del suelo parcialmente saturado en condiciones unidimensionales. El modelo acopla los cambios de succión con la deformación volumétrica a través del concepto de ...
  • Coupled analysis of a backfill hydration test 

    Alonso Pérez de Agreda, Eduardo; Lloret Morancho, Antonio; Delahaye, Carlos Héctor; Vaunat, Jean; Gens Solé, Antonio; Volckaert, G. (Wiley, 1998)
    Article
    Open Access
    BACCHUS2 in situ isothermal wetting experiment has been analysed by means of a coupled flow-deformation approach. Backfill material, a mixture of Boom clay powder and high density pellets, has been extensively tested in ...
  • Deep enclosures versus pumping to reduce settlements during shaft excavations 

    Pujades Garnes, Estanislao; Vázquez Suñé, Enric; Carrera Ramírez, Jesús; Vilarrasa Riaño, Víctor; De Simone, Silvia; Jurado Elices, Anna; Ledesma Villalba, Alberto; Ramos Schneider, Gonzalo; Lloret Morancho, Antonio (2014-02-04)
    Article
    Restricted access - publisher's policy
    Deep excavations in aquifers may be constructed by combining pumping with the cut and cover method. The enclosures are often deepened more than structurally needed, in order to diminish the risk of heave or fluidisation ...
  • Direct measurement of thermal expansion in unsaturated soils 

    Pintado Llurba, Xavier; Lloret Morancho, Antonio (Taylor & Francis, 2010)
    Conference lecture
    Restricted access - publisher's policy
    A method designed to measure the thermal dilatation coefficient of unsaturated soils is presented. It is based on the ASTM 4535-85 standard with some important considerations taken into account. A number of tests following ...
  • Dynamics of water vapor flux and water separation processes during evaporation from a salty dry soil 

    Gran, Meritxell; Massana, Jordi; Carrera Ramírez, Jesús; Saaltink, Maarten Willem; Olivella Pastallé, Sebastià; Ayora Ibáñez, Carlos; Lloret Morancho, Antonio (Elsevier, 2011-01)
    Article
    Restricted access - publisher's policy
    Evaporation from a salty soil generates salt accumulation near the surface with the subsequent deterioration of the soil quality. Salinization mechanisms are poorly understood despite their global impact. Vapor flux and ...
  • Efecto de las condiciones iniciales de compactación dinámica en la presión de preconsolidación de un suelo 

    Gómez, Evelyn J.; Lloret Morancho, Antonio (2015)
    Conference lecture
    Restricted access - publisher's policy
    Esta investigación se centra en el estudio del comportamiento mecánico de un suelo compactado, con especial énfasis en la caracterización del parámetro de la presión de preconsolidación en estado saturado. Para lograr este ...
  • Effect of intermediate stress on collapse behaviour of a compacted clayey silt 

    Cárdenas, Octavio; Romero Morales, Enrique Edgar; Lloret Morancho, Antonio; Suriol Castellví, Josep (Springer, 2012)
    Conference report
    Restricted access - publisher's policy
    There are few experimental results on the influence of the intermediate principal stress on the behaviour of unsaturated soils. Particularly, the effect of intermediate stress on the collapse response of a soil subjected ...
  • Effect of soil saturation changes on pressure on tunnel linings 

    de Santos, C.; Ledesma Villalba, Alberto; Lloret Morancho, Antonio (IOS Press, 2009)
    Conference lecture
    Restricted access - publisher's policy
    It is well known that changes in soil degree of saturation have an important influence on mechanical soil properties. Decreasing suction in soil leads to an increase of specific weight and to a decrease of stiffness and ...