Now showing items 1-20 of 39

  • Analysis of the hydration of an unsaturated seal 

    Ruiz Restrepo, Daniel Felipe; Vaunat, Jean; Gens Solé, Antonio; Mánica Malcom, Miguel Ángel (American Society of Civil Engineers (ASCE), 2018)
    Conference report
    Restricted access - publisher's policy
    The paper contains a coupled numerical analysis of the hydration of a potential sealing system for isolating shafts, ramps, and connecting galleries in a deep geological repository for high level nuclear waste. The modeling ...
  • Analysis of unsaturated materials hydration incorporating the effect of thermo-osmotic flow 

    Sánchez, Marcelo; Arson, Chloé; Gens Solé, Antonio; Aponte, Fernando (Elsevier, 2016-06)
    Article
    Open Access
    The geological disposal of a high level radioactive waste relies in a system composed of engineered and geological barriers. The soils and rocks involved in the design of this type of solution are generally initially ...
  • Anisotropic features on the thermal conductivity of a deep argillaceous formation 

    Romero Morales, Enrique Edgar; Sau Valenzuela, Núria; Lima, Analice; Van Baelen, H; Sillen, X.; Li, Xiang Ling (IOS Press, 2015)
    Conference report
    Restricted access - publisher's policy
    An experimental study on Ypresian clays – one of the potential deep and sedimentary clay formations in Belgium for the geological disposal of heat-emitting radioactive waste – has been undertaken to systematically study ...
  • Assessment of a high-level spent nuclear fuel disposal model 

    Rodríguez Dono, Alfonso; Olivella Pastallé, Sebastià; Mokni, Nadia (2018-08)
    Article
    Restricted access - publisher's policy
    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 ...
  • Coupled modelling of barriers for radioactive waste disposal 

    Gens Solé, Antonio (CRC, 2013)
    Conference report
    Restricted access - publisher's policy
    The paper first presents an overview of the issues associated with radioactive waste disposal and follows with a brief description of deep geological disposal for high level radioactive waste. The performance assessment ...
  • Coupled THM analysis of a nuclear waste repository in crystalline rock 

    Sanchez, Marcelo Dolores; Dontha, L; Gens Solé, Antonio; Guimarães, Leonardo do N (2013)
    Conference report
    Restricted access - publisher's policy
    This paper presents the Thermo-Hydro-Mechanical (THM) analysis of an isolation system for high level nuclear waste. A geological disposal facility of such type encompasses both: natural (host rock) and engineered barriers ...
  • Coupled THM modelling of engineered barriers for the final disposal of spent nuclear fuel isolation 

    Toprak, Erdem; Olivella Pastallé, Sebastià; Pintado, X. (London: The Geological Society, 2016-09)
    Article
    Open Access
    This paper describes the thermohydromechanical (THM) simulation of engineered barrier systems (EBS) for the final disposal of nuclear spent fuel in Finland. The bentonite barriers were simulated with the Barcelona Basic ...
  • Determination of the thermal parameters of a clay from heating cell tests 

    Romero Morales, Enrique Edgar; Lima Amorim, Analice França; Gens Solé, Antonio; Vaunat, Jean; Li, X. L. (2013)
    Conference report
    Restricted access - publisher's policy
    Boom Clay is being studied in Belgium in connection with the design of a repository for radioactive waste. Within this context, thermal impact may play an important role on the behaviour of this low-permeability clay. To ...
  • Effect of the clay-water interaction in the hydration process of compacted bentonite 

    Jacinto, Abel Carlos; Ledesma Villalba, Alberto (Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica, 2015-06-02)
    Conference report
    Open Access
  • Elastoplastic modelling of a ventilation test in argillaceous rock 

    Garitte, Benoit; Gens Solé, Antonio (CIMNE, 2015)
    Conference report
    Open Access
    A full scale field test to evaluate the effects of ventilation in a tunnel excavated in Opalinus clay has been performed in the underground laboratory of Mont Terri in Switzerland. The test involved several stages of wetting ...
  • Estudio de la evolución del óxido de uranio (IV) en condiciones relevantes para el almacenamiento geológico profundo (AGP) mediante espectroscopia fotoelectrónica de rayos X (XPS) 

    Espriu Gascon, Alexandra (Universitat Politècnica de Catalunya, 2012-06)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    La generación de productos radiolíticos del agua, debido a la radiación α emitida por el combustible nuclear gastado (CNG), es un fenómeno clave que produce agentes oxidantes y reductores cerca del CNG. En el presente ...
  • Experimental investigation into temperature effect on hydro-mechanical behaviours of bentonite 

    Villar, María Victoria; Gómez-Espina, R.; Lloret Morancho, Antonio (Science Press, 2010)
    Article
    Open Access
    The bentonite barrier of underground repositories for high-level radioactive waste will be hydrated by the groundwater while it is subjected to high temperatures due to the radioactive decay of the wastes. These changes ...
  • Experimental results on the effect of temperature on the hydromechanical behaviour of bentonite 

    Villar, María Victoria; Gómez-Espina, R.; Lloret Morancho, Antonio (2009)
    Conference report
    Restricted access - publisher's policy
  • 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
    Open Access
    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 ...
  • Gas migration and coupled hydro-mechanical issues in claystones for radioactive waste disposal at great depth 

    Romero Morales, Enrique Edgar; González Blanco, Laura; Marschall, Paul (European Association of Geoscientists & Engineers (EAGE), 2015)
    Conference report
    Restricted access - publisher's policy
    The hydro-mechanical behaviour of shales is becoming an important issue in current energy-related geomechanical investigations, such as CO2 sequestration, extraction of gas shale and nuclear waste geological storage. ...
  • Grimsel test site - Long-term cement studies.Reactive transport modeling of experiment 2 at Grimsel 

    Saaltink, Maarten Willem; Soler Matamala, Josep M. (2016-04)
    External research report
    Open Access
    Within the framework of the GTS-LCS project (Grimsel Test Site – Long-Term Cement Studies), an in-situ experiment lasting about 5 years was started in 2009 to study water-cement-rock interactions in fractured granite. A ...
  • 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
    Restricted access - publisher's policy
    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 ...
  • Hydro-chemical modelling of in situ behaviour of bituminized radioactive waste in Boom Clay 

    Mokni, Nadia; Olivella Pastallé, Sebastià; Valcke, Elie; Bleyen, N; Smets, Esteven; Li, Xiang Ling; Sillen, X. (2014-06)
    Article
    Open Access
    The hydro-chemical (CH) interaction between swelling Eurobitum bituminized radioactive waste (BW) and Boom Clay was investigated to assess the feasibility of geological disposal for the long-term management of this waste. ...
  • Hydro-mechanical modelling of an unsaturated seal structure 

    Ruiz Restrepo, Daniel Felipe; Vaunat, Jean; Gens Solé, Antonio; Mánica Malcom, Miguel Ángel (CRC Press, 2018)
    Conference report
    Restricted access - publisher's policy
    The paper contains a coupled numerical analysis of the hydration of a potential sealing system for isolating shafts, ramps and connecting galleries in a deep geological repository for high level nuclear waste. The modelling ...
  • Importance of sample volume changes and material degradation on gas transport properties in Boom Clay 

    González Blanco, Laura; Romero Morales, Enrique Edgar; Li, Xiang Ling; Sillen, X. (Engineers Australia, 2014)
    Conference report
    Restricted access - publisher's policy
    An experimental study on Boom Clay –one of thepotential deep clay formationsin Belgium for the geological disposal of long-living and heat-emitting radioactive waste–has been performed using controlled volume-rate gas ...