Now showing items 1-20 of 50

  • Aceleración de deslizamientos por efectos térmicos: modelación mediante el método del punto material 

    Alvarado Bueno, Mauricio; Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (2017)
    Conference report
    Open Access
    La ocurrencia de deslizamientos rápidos se ha ligado a la pérdida de resistencia efectiva a lo largo de la superficie de rotura debido a excesos de presión de agua inducidos por el calor generado durante el propio movimiento. ...
  • A constitutive model for soft clayey rocks that includes weathering effects 

    Pinyol Puigmartí, Núria Mercè; Vaunat, Jean; Alonso Pérez de Agreda, Eduardo (Institution of Civil Engineers (http://www.ice.org.uk/), 2007)
    Article
    Open Access
    Microstructural and mineralogical observations of claystones reveal the presence of clay aggregates bonded by a skeleton of inert minerals such as calcium carbonate. The behaviour of these natural materials evolves from ...
  • An undrained upper bound solution for the face stability of tunnels reinforced by micropiles 

    Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (2013)
    Conference report
    Restricted access - publisher's policy
    Tunnel in difficult soils may require procedures to prevent tunnel face failures. Face stabilization can be achieved by the installation of some structural elements. This paper presents an analysis of face stability of ...
  • A review of Beliche Dam 

    Alonso Pérez de Agreda, Eduardo; Olivella Pastallé, Sebastià; Pinyol Puigmartí, Núria Mercè (Institution of Civil Engineers (http://www.ice.org.uk/), 2005)
    Article
    Open Access
    Beliche Dam, a zoned earthdam with rockfill shouldersand a central clay core, experienced large collapse settlements due to reservoir impounding and direct action of rainfall. Long-term field records of vertical and ...
  • Avances en la geotecnia de presas 

    Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè (2007)
    Conference report
    Restricted access - publisher's policy
  • Caisson failure induced by wave action 

    Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè; Fernández, P. (2015-08-29)
    Part of book or chapter of book
    Restricted access - publisher's policy
    In 2001 a storm induced the failure of four caissons recently built for the construction of a dyke in a new entrance to the Barcelona Harbor. Understanding the failure required the analysis of the construction history and ...
  • Comportamiento y estructura de suelos compactados 

    Pinyol Puigmartí, Núria Mercè (2016)
    Conference report
    Restricted access - publisher's policy
    Las condiciones de compactación, definidas en la práctica por la humedad y densidad seca alcanzada, determinan el comportamiento del suelo bajo futuras cargas y trayectorias de humedecimiento y secado. En las últimas ...
  • Constitutive modelling of bonded expansive geomaterials 

    Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè (PRESSES DE L'ECOLE NATIONALE DES PONTS ET CHAUSSES, 2008)
    Conference report
    Open Access
    This paper presents a discussion on existing approaches to derive constitutive models for bonded geomaterials conceived as composite materials. The methodology involves the partitioning of strains, the adoption of ...
  • Design of micropiles for tunnel face reinforcement: undrained upper bound solution 

    Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (2012-01)
    Article
    Restricted access - publisher's policy
    The stability of tunnel faces supported by an umbrella of subhorizontal micropiles is analyzed by means of the upper bound theorem of plasticity. The micropiles are considered beams subjected to the kinematic motion imposed ...
  • Discussion on “Large landslides associated with a diapiric fold in Canelles reservoir (Spanish Pyrenees): Detailed geological–geomorphological mapping, trenching and electrical resistivity imaging” by Gutiérrez et al. (2015) 

    Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo; Corominas Dulcet, Jordi; Moya Sánchez, José (2016-06)
    Article
    Open Access
    This discussion a) reviews the geological model adopted for the landslide analysis and argues that there is nothing new in the reference paper, b) examines the conditions for fast catastrophic sliding and demonstrates that ...
  • Effect of shear band thickness on the termo-hydromechanical coupled analysis of landslides 

    Pinyol Puigmartí, Núria Mercè; Alvarado Bueno, Mauricio; Alonso Pérez de Agreda, Eduardo (International Centre for Numerical Methods in Engineering (CIMNE), 2017)
    Conference report
    Open Access
    Thermal effects induced by the own motion of an unstable mass have been included in the analysis of the post-failure behavior in early works, most of them with the aim of looking for the causes of the rapid acceleration ...
  • Effect of temperature induced excess pore water pressure on the shaft bearing capacity of geothermal piles 

    Fuentes, Raul; Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica, 2015-06-02)
    Conference report
    Open Access
  • Effect of temperature induced excess porewater pressures on the shaft bearing capacity of geothermal piles 

    Fuentes, Raúl; Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (Elsevier, 2016-12)
    Article
    Open Access
    Changes in temperature in clays of low permeability typically induce excess porewater pressures. In the context of geothermal piles this effect has typically been overlooked since most installations have occurred in soils ...
  • Fast planar slides. A closed form thermo-hydro-mechanical solution 

    Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (2010)
    Article
    Restricted access - confidentiality agreement
    Heat-induced eccess pore pressures on the failure surface of a planar slide have been calculated by solving the mass and heat balance equations on the shear band. The set of differential equations and the equation of ...
  • Foundation of a gravity dam on layered soft rock: shear strength of bedding planes in laboratory and large "in situ" tests 

    Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè; Pineda Jiménez, Jubert Andrés (2014-12)
    Article
    Restricted access - publisher's policy
    A 100 m high gravity dam (Castrovido dam, Burgos, Spain) is founded on a soft Weald red claystone with inter-bedded sandstone strata. Claystone weathering was identified in vertical and horizontal profiles of water content ...
  • Foundation of a gravity dam on layered soft rock: shear strength of bedding planes in laboratory and large “in situ” tests 

    Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè; Pineda, Jubert Edgar (IOS Press, 2011)
    Conference report
    Restricted access - publisher's policy
    A 100 m high gravity dam (Castrovido dam, Burgos, Spain) is founded on a soft Weald red siltstone with interbedded sandstone strata. Dam stability is essentially controlled by the available shear strength of sedimentation ...
  • Highly expansive granular mixtures 

    Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè; Hoffmann Jauge, Christian (CRC Press, 2014)
    Conference report
    Restricted access - publisher's policy
    The paper describes the behavior of mixtures of highly compacted bentonite pellets. They are considered as a suitable impervious and tight barrier for nuclear waste disposal. Laboratory experiments aimed at identifying the ...
  • Incorporating a microstructural state variable in constitutive modelling 

    Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo; Gens Solé, Antonio (2013)
    Conference report
    Restricted access - publisher's policy
    The selection of constitutive variables has been extensively discussed when modeling unsaturated soils. In general, suction and degree of saturation have been involved in the definition of constitutive variables. Recently, ...
  • Influencia del desembalse en la estabilidad de una ladera: caso real 

    Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo; Corominas Dulcet, Jordi; Moya Sánchez, José (2013)
    Conference report
    Open Access
    Un aspecto crítico a controlar en la gestión de embalses es la velocidad de descenso de nivel de agua debido al riesgo de inestabilidades en las laderas que lo forman. Este artículo presenta el estudio realizado para conocer ...
  • Internal progressive failure in deep-seated landslides 

    Yerro, Alba; Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (2015-11)
    Article
    Open Access
    Except for simple sliding motions, the stability of a slope does not depend only on the resistance of the basal failure surface. It is affected by the internal distortion of the moving mass, which plays an important role ...