Ara es mostren els items 1-20 de 46

  • Acid mine drainage in the Iberian Pyrite Belt: 2. Lessons learned from recent passive remediation experiences 

    Ayora Ibáñez, Carlos; Caraballo, Manuel A.; Macías Suárez, Francisco; Roetting, Tobias Stefan; Carrera Ramírez, Jesús; Nieto Liñán, José Miguel (2013-11)
    Article
    Accés restringit per política de l'editorial
    The Iberian Pyrite Belt (IPB), SW Spain and Portugal, contains about 100 abandoned mine wastes and galleries that release acid mine drainages (AMD) to the Tinto and Odiel rivers. In situ passive remediation technologies ...
  • A fractal model to describe the evolution of multiphase flow properties during mineral dissolution 

    Guarracino, Luis; Roetting, Tobias Stefan; Carrera Ramírez, Jesús (Elsevier, 2014-05-01)
    Article
    Accés restringit per política de l'editorial
    Understanding the changes in multiphase flow parameters caused by mineral dissolution-precipitation is required for multiple applications ranging from geological storage of CO2, enhanced geothermal energy production or ...
  • A method for incorporating chemical reactions into CODE_BRIGHT 

    Saaltink, Maarten Willem; Vilarrasa Riaño, Víctor; Gaspari, Francesca de; Silva Rojas, Orlando Enrique; Carrera Ramírez, Jesús (Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica (ETCG), 2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
  • A methodology for analysing the drainage system in excavations between sheet pile walls 

    Jurado Elices, Anna; Bolster, Diogo; Pujades Garnes, Estanislao; Vázquez Suñé, Enric; Carrera Ramírez, Jesús (2009-10)
    Comunicació de congrés
    Accés obert
    The development of an underground station below the water table requires rigorous and careful planning. As such an in depth knowledge of the station construction designs and the related hydraulic behavior are required in ...
  • A sensivity analysis of tide-induced head fluctuations in coastal aquifers 

    Slooten, Luit Jan; Carrera Ramírez, Jesús; Castro, Eduardo; Fernández García, Daniel (Elsevier, 2010)
    Article
    Accés restringit per política de l'editorial
    The response of coastal aquifers to sea-level fluctuations, notably tides, is known to contain much information about hydraulic parameters. We performed sensitivity analyses to assess how much, about what and where this ...
  • Barrier effect of underground structures on aquifers 

    Pujades Garnes, Estanislao; López, Ander; Carrera Ramírez, Jesús; Vázquez Suñé, Enric; Jurado Elices, Anna (2012)
    Article
    Accés restringit per política de l'editorial
    Impervious structures below the water table modify the natural groundwater flow in aquifers. They act as barriers, causing heads to rise upgradient and to fall downgradient. We define the barrier effect as the increase in ...
  • Changes in hydrodynamic, structural and geochemical properties in carbonate rock samples due to reactive transport 

    Martínez Pérez, Laura; Luquot, Linda; Carrera Ramírez, Jesús (Elsevier, 2017-01)
    Article
    Accés obert
    Reactive transport plays an important role in the development of a wide range of both anthropic and natural processes affecting geological media. To predict the consequences of reactive transport processes on structural ...
  • Characterization of flow parameters and evidence of pore clogging during limestone dissolution experiments 

    Luquot, Linda; Roetting, Tobias Stefan; Carrera Ramírez, Jesús (2014-08-01)
    Article
    Accés restringit per política de l'editorial
    Rock dissolution induces changes in texture (porosity, pore-size distribution, or tortuosity) which modify multiphase flow and transport properties (permeability, diffusion coefficient, retention curve). Limestone dissolution ...
  • CO2 injection in deep saline sloping aquifers through a vertical well 

    Vilarrasa Riaño, Víctor; Olivella Pastallé, Sebastià; Carrera Ramírez, Jesús (2011)
    Text en actes de congrés
    Accés obert
  • Compositional formulation for multi phase flow reactive transport in porous media: an approach that simplifies coupling between phenomena 

    Gamazo Rusnac, Pablo Andres; Saaltink, Maarten Willem; Carrera Ramírez, Jesús (Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2010)
    Text en actes de congrés
    Accés obert
    In this work we discuss coupling difficulties that arises when solving phase and species conservation equations. We present a compositional formulation that avoids these difficulties, and allows solving multiphase reactive ...
  • Coupling of mass transfer and reactive transport for nonlinear reactions in heterogeneous media 

    Willmann, Mathias; Carrera Ramírez, Jesús; Sánchez Vila, Francisco Javier; Silva Rojas, Orlando Enrique; Dentz, Marco (2010-07-01)
    Article
    Accés obert
    Fast chemical reactions are driven by mixing‐induced chemical disequilibrium. Mixing is poorly represented by the advection‐dispersion equation. Instead, effective dynamics models, such as multirate mass transfer (MRMT), ...
  • 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
    Accés restringit per política de l'editorial
    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 ...
  • Dewatering of a deep excavation undertaken in a layered soil 

    Pujades Garnes, Estanislao; Vázquez Suñé, Enric; Carrera Ramírez, Jesús; Jurado Elices, Anna (2014-08-21)
    Article
    Accés restringit per política de l'editorial
    In order to carry out deep excavations under the water table in urban environments, the safety of the work site and of the adjacent buildings is a major cause for concern. One of the most common and effective methods of ...
  • Dissolution patterns and mixing dynamics in unstable reactive flow 

    Hidalgo, Juan J.; Dentz, Marco; Cabeza Diaz de Ceiro, Yoar; Carrera Ramírez, Jesús (2015-08-16)
    Article
    Accés obert
    We study the fundamental problem of mixing and chemical reactions under a Rayleigh-Taylor-type hydrodynamic instability in a miscible two-fluid system. The dense fluid mixture, which is generated at the fluid-fluid interface, ...
  • 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
    Accés restringit per política de l'editorial
    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 ...
  • Emerging organic contaminants in groundwater in Spain: A review of sources, recent occurrence and fate in a European context 

    Jurado Elices, Anna; Vázquez Suñé, Enric; Carrera Ramírez, Jesús; López de Alda, Miren; Pujades Garnes, Estanislao; Barceló, Damià (2012)
    Article
    Accés restringit per política de l'editorial
    This paper reviewed the presence of emerging organic contaminants (EOCs) that have been found in the groundwater in Spain in both, rural and urban areas. The list of compounds included pesticides, pharmaceutical active ...
  • Estimation of hydraulic parameters for heterogeneous coastal aquifer systems from pumping test analysis and tidal response 

    Pool Ramírez, María; Carrera Ramírez, Jesús (2013)
    Text en actes de congrés
    Accés obert
  • 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
  • Extension of CODE_BRIGHT to simulate non-isothermal CO2 injection in deep saline aquifers 

    Vilarrasa Riaño, Víctor; Olivella Pastallé, Sebastià; Silva Rojas, Orlando Enrique; Carrera Ramírez, Jesús (Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica (ETCG), 2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
  • Fate of ß-blockers in aquifer material under nitrate reducing conditions: Batch experiments 

    Barbieri, Manuela; Licha, Tobias; Nödler, K.; Carrera Ramírez, Jesús; Ayora Ibáñez, Carlos; Sánchez Vila, Francisco Javier (2012-11)
    Article
    Accés restringit per política de l'editorial
    The fate of the three environmentally relevant β-blockers atenolol, metoprolol and propranolol has been studied in batch experiments involving aquifer material and nitrate reducing conditions. Results from the about 90 d ...