COLLECTIONS

Documents published in Scipedia

• Computer-aided design and analysis of arch dams

  F. Salazar, J. San Mauro, D. Vicente, L. Gracia, I. de-Pouplana, E. Oñate

  (2017). 14th International Benchmark Workshop on the Numerical Analysis of Dams. Stockholm, Sweden, 2017

  
  

  Abstract

  Double curvature arch dams feature geometrical complexity with a significant amount of parameters involved. Different criteria exist to assist in the design task, from simplified geometrical approaches to optimization procedures. However, most of them present a lack of flexibility and are not integrated in computer-aided design tools. In this contribution, an interactive and flexible software tool is presented to support the complete design process: geometrical definition, FEM model generation (including the mesh, the loads and the boundary conditions) and thermo-mechanical analysis. The design can be performed with different levels of detail to adapt to the information available in each stage of the project. The tool allows defining the shape of the reference cylinder, the excavation depth and slope along the foundation, the crown cantilever thickness and curvature, the shape and location of horizontal arcs; all these steps were described in former contributions. Here, special attention is paid to the introduction of additional features such as joints, spillways, abutments of varying shape and outlet works. All steps have been defined with a high degree of flexibility in the design process. The tool is integrated with the pre and post process software GiD, which allows taking advantage of its functionalities, such as mesh generation and results analysis. It is also coupled with a specific application for thermo-mechanical analysis of dams, developed in Kratos Multiphysics – a framework for building parallel multi-disciplinary simulation software. The whole design process can be followed in a unique environment, because the structural response of preliminary designs can be computed and the results considered to refine the dam geometry.

  Abstract
  Double curvature arch dams feature geometrical complexity with a significant amount of parameters involved. Different criteria exist to assist in the design task, from simplified [...]

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• A systematic assessment of the influence of geometry and materials properties on the performance of arch dams

  F. Salazar, M. Toledo, D. Vicente

  (2017). 14th International Benchmark Workshop on the Numerical Analysis of Dams. Stockholm, Sweden, 2017

  
  

  Abstract

  Arch dams have different properties that play a relevant role in their behavior, although it is not clear to what degree or in what sense. There is some consensus regarding the relevance of certain factors such as length at crown, height, base and crest thickness, or Young modulus of dam and foundation. However, others such as the shape of arcs and cantilevers, which are correlated and whose effect is more difficult to consider, can also be influential. In this work, a systematic study of the response of arch dams in front of the common loading scenarios has been carried out, taking into account the usual range of variation of their properties. In total, 39 input variables related to geometry, material strength and thermal load were considered. Ranges of variation for each of these parameters have been defined according to the usual design criteria and 3,000 different geometries – together with the corresponding FEM models have been generated with random values of these parameters. The resulting displacements and stresses have been used to fit prediction models based on a machine learning technique named ‘random forests’ that give an estimate of the dam response. The interpretation of these models can be associated with the relative importance of the characteristics of arch dams on each of the behavior variables.

  Abstract
  Arch dams have different properties that play a relevant role in their behavior, although it is not clear to what degree or in what sense. There is some consensus regarding [...]

  • 13
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Articles (Documents not available in Scipedia)

• Water scarcity in the Spanish part of the Douro basin: current status and future scenarios

  DJ Vicente, L Rodríguez-Sinobas

  EGU General Assembly Conference Abstracts, 2016

• Application of the System of Environmental Economic Accounting for Water SEEAW to the Spanish part of the Duero basin: lessons learned

  DJ Vicente, L Rodríguez-Sinobas, L Garrote, R Sánchez

  Science of the Total Environment - STOTEN, 2016

• Lessons learned from the elaboration of SEEAW tables in the Duero basin

  DJ Vicente, L Garrote, J Rodríguez, R Sánchez

  EGU General Assembly Conference Abstracts 17, 10479, 2015

• Pressure management in water distribution systems: Current status, proposals and future trends

  DJ Vicente, L Garrote, R Sánchez, D Santillán

  Journal of Water Resources Planning and Management, 2015

• Modelación y caracterización de estaciones de regulación de presión en redes de distribución de agua urbana

  R Sánchez, DJ Vicente, L Rodríguez-Sinobas

  IV Jornadas de Ingeniería del Agua, 2015

• Comparación de diferentes métodos de determinación de la presión media en sistemas de distribución de agua, para la estimación de caudal fugado

  DJ Vicente

  VIII Seminario Líneas Prioritarias RLHE (Red de Laboratorios de Hidráulica ..., 2014

• Treatment of solar radiation by spatial and temporal discretization for modeling the thermal response of arch dams

  D Santillán, E Salete, DJ Vicente, MÁ Toledo

  Journal of Engineering Mechanics 140 (11), 05014001, 2014

• Funcionamiento de reguladores de presión en paralelo y en serie

  R Sánchez, L Juana Sirgado, L Rodríguez Sinobas, DJ Vicente, ...

  III Jornadas de Ingeniería del Agua, 2013

• Hacia el diseño óptimo de un plan de Gestión de Presiones en redes de distribución de agua urbana

  II Jornadas de Ingeniería del Agua, 2011