Now showing items 1-20 of 24

    • A machine learning-based surrogate model for the identification of risk zones due to off-stream reservoir failure 

      Silva Cancino, Nathalia; Salazar González, Fernando; Sanz Ramos, Marcos; Bladé i Castellet, Ernest (2022-08)
      Article
      Open Access
      Approximately 70,000 Spanish off-stream reservoirs, many of them irrigation ponds, need to be evaluated in terms of their potential hazard to comply with the new national Regulation of the Hydraulic Public Domain. This ...
    • A machine learning-based surrogate model for the identification of risk zones due to off-stream reservoir failure 

      Silva Cancino, Nathalia; Salazar González, Fernando; Sanz Ramos, Marcos; Bladé i Castellet, Ernest (International Association for Hydro-Environment Engineering and Research (IAHR), 2022)
      Conference report
      Restricted access - publisher's policy
      With the modification of the Regulations of the Hydraulic Public Domain of Spain in 2008, approximately 70.000 owners of off-stream reservoirs are obligated to present a classification assessment on the potential risk due ...
    • A review on thermo-mechanical modelling of arch dams during construction and operation: effect of the reference temperature on the stress field 

      Salazar González, Fernando; Vicente González, David Jesús; Irazábal González, Joaquín; Pouplana Sarda, Ignasi de; San Mauro Saiz, Javier (2020-11)
      Article
      Restricted access - publisher's policy
      Double-curvature dams are unique structures for several reasons. Their behaviour changes significantly after joint grouting, when they turn from a set of independent cantilevers into a monolithic structure with arch effect. ...
    • ACROPOLIS: a graphical user interface for classification of risk for off-stream reservoirs using machine learning 

      Silva Cancino, Nathalia; Salazar González, Fernando; Bladé i Castellet, Ernest (2024-05)
      Article
      Open Access
      Potential risk identification due to off-stream reservoir failure typically requires the use of two-dimensional hydraulic models, which demands considerable effort in terms of expertise, time and financial resources. ...
    • Air demand estimation in bottom outlets with the particle finite element method. Susqueda Dam case study 

      Salazar González, Fernando; San Mauro Saiz, Javier; Celigueta Jordana, Miguel Ángel; Oñate Ibáñez de Navarra, Eugenio (Springer, 2017-07)
      Article
      Open Access
      Dam bottom outlets play a vital role in dam operation and safety, as they allow controlling the water surface elevation below the spillway level. For partial openings, water flows under the gate lip at high velocity and ...
    • An empirical comparison of machine learning techniques for dam behaviour modelling 

      Salazar González, Fernando; Toledo Municio, Miguel Ángel; Oñate Ibáñez de Navarra, Eugenio; Morán Moya, Rafael (2015-09)
      Article
      Open Access
      Predictive models are essential in dam safety assessment. Both deterministic and statistical models applied in the day-to-day practice have demonstrated to be useful, although they show relevant limitations at the same ...
    • Analysis of fluid soil-structure interaction problems with the particle finite element method (PFEM) 

      Oñate Ibáñez de Navarra, Eugenio; Celigueta Jordana, Miguel Ángel; Idelsohn Barg, Sergio Rodolfo; Salazar González, Fernando; Larese De Tetto, Antonia; Rossi, Riccardo; Suárez Arroyo, Benjamín; Morán, R. (2012)
      Research report
      Open Access
      We present some developments in the Particle Finite Element Method (PFEM) for analysis of coupled problems in mechanics involving fluid-soil-structure interaction (FSSI). The PFEM uses an updated Lagrangian description to ...
    • Analysis of the discharge capacity of radial gated-spillways using CFD and ANN: Oliana Dam case study 

      Salazar González, Fernando; Morán Moya, Rafael; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio (2013-03)
      Article
      Restricted access - publisher's policy
      The paper focuses on the analysis of radial-gated spillways, which is carried out by the solution of a numerical model based on the finite element method (FEM). The Oliana Dam is considered as a case study and the discharge ...
    • Análisis experimental y numérico del oleaje producido por la inestabilidad de laderas de embalses 

      Alves, Ricardo; Morán, Rafael; Toledo Municio, Miguel Ángel; Irazábal González, Joaquín; Salazar González, Fernando; Larese De Tetto, Antonia (2015)
      Conference report
      Open Access
      El fenómeno del oleaje causado por deslizamientos de laderas de embalse un escenario formado por dos procesos, uno de tipo geomecánico y otro, hidrodinámico. El primero está relacionado con el origen de la inestabilidad ...
    • Applications of numerical methods in design and evaluation of overtopping protection systems 

      Salazar González, Fernando; San Mauro Saiz, Javier; Larese De Tetto, Antonia; Irazábal González, Joaquín; Morán Moya, Rafael; Oñate Ibáñez de Navarra, Eugenio; Toledo Municio, Miguel Ángel (Colorado State University, 2016)
      Conference lecture
      Restricted access - publisher's policy
      The development of overtopping protection systems often requires detailed analyses of complex physical phenomena. This hinders the comprehensive knowledge of their behavior, and therefore the development of suitable design ...
    • Combining synthetic and observed data to enhance machine learning model performance for streamflow prediction 

      López Chacón, Sergio Ricardo; Salazar González, Fernando; Bladé i Castellet, Ernest (Multidisciplinary Digital Publishing Institute (MDPI), 2023-06)
      Article
      Open Access
      Machine learning (ML) models have been shown to be valuable tools employed for streamflow prediction, reporting considerable accuracy and demonstrating their potential to be part of early warning systems to mitigate flood ...
    • Data-based models for the prediction of dam behaviour: a review and some methodological considerations 

      Salazar González, Fernando; Morán Moya, Rafael; Toledo Municio, Miguel Ángel; Oñate Ibáñez de Navarra, Eugenio (2017-01)
      Article
      Open Access
      Predictive models are an important element in dam safety analysis. They provide an estimate of the dam response faced with a given load combination, which can be compared with the actual measurements to draw conclusions ...
    • Design and validation of rockfall protection systems by numerical modeling with discrete elements 

      Latorre, Salvador; Celigueta Jordana, Miguel Ángel; Irazábal González, Joaquín; Salazar González, Fernando; Oñate Ibáñez de Navarra, Eugenio (International Centre for Numerical Methods in Engineering (CIMNE), 2017)
      Conference report
      Open Access
      Rockfall protection systems are installed in order to preserve civil infrastructures against landslides and falling rocks. For the evaluation of these systems,one of the main problems is the difficulty to develop laboratory ...
    • Early detection of anomalies in dam performance: a methodology based on boosted regression trees 

      Salazar González, Fernando; Toledo Municio, Miguel Ángel; González Lopez, Jose Manuel; Oñate Ibáñez de Navarra, Eugenio (2017-11)
      Article
      Open Access
      The advances in information and communication technologies led to a general trend towards the availability of more detailed information on dam behaviour. This allows applying advanced data-based algorithms in its analysis, ...
    • Effect of the integration scheme on the rotation of non-spherical particles with the discrete element method 

      Irazábal González, Joaquín; Salazar González, Fernando; Santasusana Isach, Miquel; Oñate Ibáñez de Navarra, Eugenio (Springer, 2019-10)
      Article
      Open Access
      The discrete element method (DEM) is an emerging tool for the calculation of the behaviour of bulk materials. One of the key features of this method is the explicit integration of the motion equations. Explicit methods are ...
    • Fluid-soil-structure interaction analysis with the particle finite element method 

      Oñate Ibáñez de Navarra, Eugenio; Celigueta Jordana, Miguel Ángel; Idelsohn Barg, Sergio Rodolfo; Salazar González, Fernando; Suárez Arroyo, Benjamín (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2012)
      Part of book or chapter of book
      Restricted access - publisher's policy
      We present some developments and applications of the Particle Finite Element Method (PFEM) for analysis of complex coupled problems in mechanics involving fluid-soil-structure interaction.
    • Hydraulic and stability analysis of the supporting layer of wedge-shaped blocks 

      San Mauro Saiz, Javier; Larese De Tetto, Antonia; Salazar González, Fernando; Irazábal González, Joaquín; Morán Moya, Rafael; Toledo Municio, Miguel Ángel (Colorado State University, 2016)
      Conference lecture
      Restricted access - publisher's policy
      Wedge shaped blocks (WSB) are attracting increasing attention as protection against overtopping for earth and rock-fill dams. However, there are limited examples of application and some aspects of the technology merit ...
    • Interpretation of dam deformation and leakage with boosted regression trees 

      Salazar González, Fernando; Toledo Municio, Miguel Ángel; Oñate Ibáñez de Navarra, Eugenio; Suárez Arroyo, Benjamín (2016-07)
      Article
      Open Access
      Predictive models are essential in dam safety assessment. They have been traditionally based on simple statistical tools such as the hydrostatic-season-time (HST) model. These tools are well known to have limitations in ...
    • A machine learning based methodology for anomaly detection in dam behaviour 

      Salazar González, Fernando (Universitat Politècnica de Catalunya, 2017-02-23)
      Doctoral thesis
      Open Access
      Dam behaviour is difficult to predict with high accuracy. Numerical models for structural calculation solve the equations of continuum mechanics, but are subject to considerable uncertainty as to the characterisation of ...
    • Modelación numérica de deslizamientos de ladera en embalses mediante el Método de Partículas y Elementos Finitos (PFEM) 

      Salazar González, Fernando; Oñate Ibáñez de Navarra, Eugenio; Morán Moya, Rafael (2012-04)
      Article
      Open Access
      The paper presents the results of the application of the Particle Finite Element Method (PFEM) to the analysis of landslides in reservoirs. This is a complex phenomenon, because of the interaction between the landslide, ...