Ara es mostren els items 66-85 de 214

    • Evaluación de la seguridad en problemas de mecánica de rocas mediante el método c-Φ reduction 

      Aliguer Piferrer, Ignasi; Carol, Ignacio; Alonso Pérez de Agreda, Eduardo (Universitat Politècnica de Catalunya. Escola Tècnica Superior d'Enginyers de Camins Canals i Ports de Barcelona, 2011-11-15)
      Comunicació de congrés
      Accés obert
      En este documento de detalla de forma sintética el trabajo realizado hasta la fecha en la realización por parte del primer autor de la tesis doctoral que lleva por título: “Métodos Numéricos Avanzados para Evaluar la ...
    • Evaluation of alternative methodologies to minimize movements of a diaphragm wall close to buildings 

      de Santos, C.; Ledesma Villalba, Alberto; Lloret Morancho, Antonio; Alonso Pérez de Agreda, Eduardo (IOS Press, 2011)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In the framework of the construction of the high-speed railway passing through Barcelona, a large excavation (21m depth) has made to about 2 m of a building. The excavation was done in the quaternary material typical of ...
    • Evaluation of Safety Factors in Discontinuous Rock 

      Alonso Pérez de Agreda, Eduardo; Carol, Ignacio; Delahaye, Carlos Héctor; Gens Solé, Antonio; Prat Catalán, Pere (Elsevier, 1996)
      Article
      Accés restringit per política de l'editorial
      Safety factors for kinematically admissible failure mechanisms in jointed rock masses have been defined with linear and nonlinear failure criteria for rock discontinuities. Data required to compute these safety factors ...
    • Excavación de un pozo profundo para revisión de una tuneladora en el centro de Barcelona 

      Ledesma Villalba, Alberto; Lloret Morancho, Antonio; de Santos, C.; Ramos, Gonzalo; Alonso Pérez de Agreda, Eduardo; Vázquez Suñé, Enric; Pujades Garnes, Estanislao; Carrera Ramírez, Jesús (Sociedad Española de Mecánica del Suelo e Ingeniería Geotécnica, 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
    • Expansive bentonite-sand mixtures in ciclyc controlled-suction drying and wetting 

      Alonso Pérez de Agreda, Eduardo; Romero Morales, Enrique Edgar; Hoffmann Jauge, Christian; García-Escudero, E (2005-11)
      Article
      Accés restringit per política de l'editorial
      Expansive clay buffers in radioactive waste disposal designs experience cyclic drying and wetting paths during different stages of their design life. Clayey soils subjected to these processes develop swelling and shrinkage ...
    • Expansive bentonite–sand mixtures in cyclic controlled-suction drying and wetting 

      Alonso Pérez de Agreda, Eduardo; Romero Morales, Enrique Edgar; Hoffmann Jauge, Christian; García Escudero, Enrique (Elsevier, 2005)
      Article
      Accés obert
      Expansive clay buffers in radioactive waste disposal designs experience cyclic drying and wetting paths during different stages of their design life. Clayey soils subjected to these processes develop swelling and shrinkage ...
    • Experimental behaviour of compacted marls 

      Cardoso, Rafaela; Maranha das Neves, E.; Alonso Pérez de Agreda, Eduardo (2012-08)
      Article
      Accés restringit per política de l'editorial
      Jurassic marls from Abadia, Portugal, were used in the construction of some motorway embankments. Large fragments of this evolving material remained after the construction process, and their degradation was of concern ...
    • Experimental investigation on an effective stress law in compacted clayey/silty soil 

      Alonso Pérez de Agreda, Eduardo; Romero Morales, Enrique Edgar (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Experimental results of isotropic stress tests performed on statically compacted clayey silt are presented to examine the volume change response of the material subjected to controlled increments in net mean stress and ...
    • Factors controlling rock–clay buffer interaction in a radioactive waste repository 

      Gens Solé, Antonio; Guimarães, Leonardo do N; García Molina, Ángel; Alonso Pérez de Agreda, Eduardo (Elsevier, 2002)
      Article
      Accés obert
      The paper examines the interaction between host rock and a clay-based engineered barrier in the context of deep underground disposal of high-level radioactive waste. A large scale ‘‘in situ’’ heating test currently under ...
    • Failure mechanisms in brittle soils: a dam failure revisited with the material point method 

      Alonso Pérez de Agreda, Eduardo; Zabala, Francisco (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The material Point Method (MPM) combines features of Finite Element and Discrete Particle methods. It is well suited to analyze geotechnical problems which involve large displacements and dynamic response. An explicit ...
    • Fast planar slides. A closed form thermo-hydro-mechanical solution 

      Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (2010)
      Article
      Accés restringit per acord de confidencialitat
      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 ...
    • Fenómenos de expansión en estribos 

      Alonso Pérez de Agreda, Eduardo; Ramon Tarragona, Anna (2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
    • 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
      Accés restringit per política de l'editorial
      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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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 ...
    • Gas flow through clay barriers 

      Olivella Pastallé, Sebastià; Alonso Pérez de Agreda, Eduardo (2008-04)
      Article
      Accés obert
      A model for the simulation of gas flow in clayey rocks and clays is described. Gas migration is associated with the development of preferential paths along existing or pressure-dependent discontinuities. The model handles ...
    • Gas flow through clay barriers 

      Olivella Pastallé, Sebastià; Alonso Pérez de Agreda, Eduardo (Institution of Civil Engineers (http://www.ice.org.uk/), 2008)
      Article
      Accés obert
      A model for the simulation of gas flow in clayey rocks and clays is described. Gas migration is associated with the development of preferential paths along existing or pressure-dependent discontinuities. The model handles ...
    • Gas injection laboratory experiments on Opalinus clay. 

      Romero Morales, Enrique Edgar; Alonso Pérez de Agreda, Eduardo; Marschall, P; Arnedo Gaute, Diego; De Gracia, M (2009)
      Comunicació de congrés
      Accés obert
      Understanding gas transport processes is one of the key issues in the assessment of radioactive waste repository performance and is the focus of this research. To this aim, this research programme was started with ...
    • Gas migration in sand/bentonite mixtures through preferential paths 

      Arnedo Gaute, Diego; Alonso Pérez de Agreda, Eduardo; Olivella Pastallé, Sebastià; Romero Morales, Enrique Edgar (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Sand/bentonite mixtures are considered as buffer material in low and medium radioactive waste disposal schemes. While the bentonite provides low permeability and swelling capacity, the sand is intended to improve mechanical ...
    • Gypsum crystal growth in tunnels 

      Ramon Tarragona, Anna; Alonso Pérez de Agreda, Eduardo (CRC Press. Taylor & Francies Group, 2011)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Precipitation of gypsum crystals explains the severe swelling occurred in some tunnels crossing sulphate formations. The presence of groundwater and discontinuities, and the proportions of anhydrite and gypsum within the ...
    • Heave of a building induced by swelling of an anhydritic Triassic claystone 

      Ramon Tarragona, Anna; Alonso Pérez de Agreda, Eduardo (2018-09)
      Article
      Accés obert
      This paper describes the conditions leading to a sustained, low-rate, heave phenomenon affecting a building founded on hard Keuper anhydritic rock. The building was located in an abandoned gypsum quarry. Monitoring data ...