Exploració per tema "Residus radioactius -- Emmagatzematge"

Ara es mostren els items 21-40 de 43

    • 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 ...

    • Heat storage efficiency, ground surface uplift and thermo-hydro-mechanical phenomena for high-temperature aquifer thermal energy storage 

      Vidal Montes, Rubén; Olivella Pastallé, Sebastià; Saaltink, Maarten Willem; Diaz-Maurin, François Carlos León (2022-10)
      Article
      Accés obert
      High-temperature aquifer thermal energy storage (HT-ATES) systems can help in balancing energy demand and supply for better use of infrastructures and resources. The aim of these systems is to store high amounts of heat ...

    • Hidratación de un relleno compactado que contiene agregados de alta intensidad 

      Alonso Pérez de Agreda, Eduardo; Lloret Morancho, Antonio; Gens Solé, Antonio; Delahaye, Carlos Héctor; Facio, J.A. (1996-01)
      Article
      Accés restringit per política de l'editorial
      Se han investigado, mediante ensayos de laboratorio, las características de hidratación de mezclas expansivas constituídas por una matriz de polvo arcilloso y agregados (pastillas de pequeño tamaño) de arcilla de alta ...

    • In situ behaviour of a stiff layered clay subject to thermal loading: Observations and interpretation 

      Gens Solé, Antonio; Vaunat, Jean; Garitte, Benoit; Wileveau, Y. (2007-03)
      Article
      Accés obert
      The paper presents an interpretation of an in situ heating test carried out on Opalinus clay in the Mont Terri underground laboratory. Opalinus clay is a stiff, strongly bedded, Mesozoic clay of marine origin. When subjected ...

    • Mechanical behaviour of heavily compacted bentonite under high suction changes 

      Lloret Morancho, Antonio; Villar, María Victoria; Sánchez, M.; Gens Solé, Antonio; Pintado Llurba, Xavier; Alonso Pérez de Agreda, Eduardo (Institution of Civil Engineers (http://www.ice.org.uk/), 2003)
      Article
      Accés obert
      The paper reports the results of an experimental study carried out on a bentonite compacted to a dry density of up to 1·7 Mg=m3, a high value for this type of soil. The soil fabric has been studied using a variety of ...

    • Mechanics of unsaturated geomaterials applied to nuclear waste storage 

      Gens Solé, Antonio (ISTE/WILEY, 2010)
      Capítol de llibre
      Accés restringit per política de l'editorial

    • Modeling swelling soils for disposal barriers 

      Navarro, Vicente; Alonso Pérez de Agreda, Eduardo (Elsevier, 2000)
      Article
      Accés obert
      A fully coupled advanced formulation for heat, liquid and gas transfer in unsaturated deforming soils is presented. Balance equations are rooted in the theory of mixtures. A double porosity model, which is believed to ...

    • Numerical formulation for a simulator (CODE_BRIGHT) for the coupled analysis of saline media 

      Olivella Pastallé, Sebastià; Gens Solé, Antonio; Carrera Ramírez, Jesús; Alonso Pérez de Agreda, Eduardo (MCB University Press, 1996)
      Article
      Accés obert
      Salt rocks are being considered as potential recipients for geologic disposal of nuclear waste because of their favourable hydraulic and mechanical properties. In essence, processes controlling the behaviour of salt rocks ...

    • Pellet mixtures in isolation barriers 

      Alonso Pérez de Agreda, Eduardo; Hoffmann Jauge, Christian; Romero Morales, Enrique Edgar (Science Press, 2010)
      Article
      Accés obert
      Granular mixtures made of high-density pellets of bentonite are being evaluated as an alternative buffer material for waste isolation. Ease of handling is an often-mentioned advantage. The paper describes the experimental ...

    • Performance of large diameter storage and sealing structures in a deep exothermic waste repository 

      Alonso, Matías; Vaunat, Jean; Olivella Pastallé, Sebastià; Gens Solé, Antonio; Vu, Minh-Ngoc (2022)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The paper presents the work carried out to assess and simulate numerically the phenomenology behind the response of large diameter intermediate-level long-lived nuclear waste (ILW-LL) storage galleries and the corresponding ...

    • Reactive solute transport in variable density 

      Sáinz García, Álvaro M. (Universitat Politècnica de Catalunya, 2009-10-20)
      Tesina
      Accés obert
      A pesar del gran avance que ha vivido la modelaci on del transporte reactivo en las ultimas d ecadas, s olo unos pocos estudios han abordado el problema del transporte reactivo en un ujo con densidad variable. En este ...

    • Report on THM/THMC model improvement 

      Gens Solé, Antonio; Zandarín, Maria Teresa (2009-10-26)
      Report de recerca
      Accés obert
      Deliverable 10

    • RESEAL II: a large-scale in situ demonstration for repository sealing in an argillaceous host rock: phase II 

      Valleján, Beatriz; Gens Solé, Antonio; Mingarro, M.; García-Gutiérrez, M.; Villar, María Victoria; Plas, F.; Filippi, M.; Touzé, G.; Van Geet, Maarten; Bastiaens, W.; Volckaert, G.; Weetjens, E.; Sillen, X.; Maes, N.; Imbert, Ch.; Billaud, P. (2009)
      Report de recerca
      Accés obert
      Final Report

    • Simulation of expansive clay behavior under simultaneous heating-hydration for nuclear waste storage applications 

      Sánchez, M.; Gens Solé, Antonio; Villar, María Victoria; Lloret Morancho, Antonio (American Society of Civil Engineers (ASCE), 2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The storage of nuclear waste is still an unresolved problem of the nuclear industry, being geological disposal the most favoured option. Most conceptual designs for the deep geological disposal of nuclear waste envisage ...

    • Small-strain shear stiffness of compacted bentonites for engineered barrier system 

      Pintado Llurba, Xavier; Romero Morales, Enrique Edgar; Suriol Castellví, Josep; Lloret Morancho, Antonio; Madhusudhan, B. N. (Elsevier, 2019-06)
      Article
      Accés obert
      The shear modulus (G) of two different bentonites was measured by means of a resonant column apparatus. The samples were compacted at different dry densities and degrees of saturation and tested with different confinement ...

    • Suction-controlled experiments on Boom clay 

      Bernier, F.; Volckaert, G.; Alonso Pérez de Agreda, Eduardo; Villar, M. (Elsevier, 1997)
      Article
      Accés obert
      The understanding of the thermo-hydro-mechanical behaviour of a clay barrier is needed for the prediction of its final in situ properties after the hydration and thermal transient in a radioactive waste repository. As ...

    • The FEBEX benchmark test: case definition and comparison of modelling approaches 

      Alonso Pérez de Agreda, Eduardo; Alcoverro Bassols, Jordi; Coste, F.; Selvadurai, A. P. S.; Tsang, C.-F.; Malinsky, L.; Merrien-Soukatchoff, V.; Kadiri, I.; Nowak, T.; Shao, H.; Nguyen, T.S.; Armand, G.; Sobolik, S.R.; Itamura, M.; Stone, C.M.; Webb, S.W.; Rejeb, A.; Tijera, Manuel; Maouche, Z.; Kobayashi, A.; Kurikami, H.; Ito, A.; Sugita, Y.; Chijimatsu, M.; Börgesson, L.; Hernelind, J.; Rutqvist, J.; Jussila, P. (Elsevier, 2005)
      Article
      Accés obert
      The FEBEX (Full-scale Engineered Barriers Experiment in Crystalline Host Rock) ‘‘in situ’’ test was installed at the Grimsel Test Site underground laboratory (Switzerland) and is a near-to-real scale simulation of the ...

    • Thermo-hydraulic characterisation of soft rock by means of heating pulse tests 

      Muñoz, Juan Jorge; Alonso Pérez de Agreda, Eduardo; Lloret Morancho, Antonio (2009-05)
      Article
      Accés restringit per política de l'editorial
      Low-permeability clayey rocks, currently considered as suitable host rocks for high-level nuclear waste disposal, pose a challenge for the determination of thermal, hydraulic and mechanical properties. A thermo-hydraulic ...

    • Thermo-Hydro-Mechanical Behaviour of Ypresian Clay 

      Piña Díaz, Yessenia E. (Universitat Politècnica de Catalunya, 2011-07-11)
      Projecte Final de Màster Oficial
      Accés obert
      Deep geological disposal solution of high-level and long-lived radioactive waste has been internationally recognised as the preferred option. On this regard, Belgium investigates two deep clay formations; the Boom clay at ...

    • THM numerical models 

      Gens Solé, Antonio; Zandarín, Maria Teresa (2009-10-26)
      Report de recerca
      Accés obert
      Deliverable 12