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Browsing by Author "Montalbán Domingo, María Laura"

Now showing items 1-20 of 32

An artificial neural network model as a preliminary track design tool

Montalbán Domingo, María Laura; Fernández-Villa, J. A.; Masanet Sendra, Claudio; Real Herráiz, Julia Irene (SAGE PUBLICATIONS LTD, 2015)

The formula derived from Zimmermann s theory is commonly used in railway track design. However, this formula depends on variables such as the ballast coefficient, which are difficult to determine. In recent years, numerical ...
Analysis of vibrations in a modeled ballasted track using measured rail defects

Real Herráiz, Julia Irene; Asensio Serrano, Tamara; Montalbán Domingo, María Laura; Zamorano, Clara (Research Center of the Public Institution "Vibromechanika", 2012-06)

Vibrations caused by trains and transmitted to the ground and structures nearby are a known source of problems related to railways. Therefore this phenomenon should be studied in detail to avoid a negative impact in the ...
Criterios de sostenibilidad en la contratación de obra pública en España

Bueno Llop, Celia (Universitat Politècnica de València, 2017-10-16)

[EN] Sustainable public contracting system, also known as responsible public contracting, consists of the integration of social, ethical and environmental aspects into public contracting procedures and phases. Construction ...
Derailment risk and dynamics of railway vehicles in curved tracks: Analysis of the effect of failed fasteners

Morales-Ivorra, Silvia; Real Herráiz, Julia Irene; Hernández Gracia, César; Montalbán-Domingo, Laura (Springer-Verlag, 2016)

[EN] The effect of the fastener s failure in a railway track on the dynamic forces produced in the wheel-rail contact is studied using the simulation software VAMPIRE to assess the derailment risk of two different vehicles ...
Design and validation of a railway inspection system to detect lateral track geometry defects based on axle-box accelerations registered from in-service trains

Real, T.; Montrós Monje, Jorge; Montalbán Domingo, María Laura; Zamorano, Clara; Real Herráiz, Julia Irene (Research Center of the Public Institution "Vibromechanika", 2014-02)

Metropolitan railway transport has become an efficient solution to the mobility necessities in urban areas. Railway track maintenance tasks have to be improved and adjusted to metropolitan requirements, in particular the ...
Determination of rail vertical profile through inertial methods

Real Herráiz, Julia Irene; Salvador Zuriaga, Pablo; Montalbán Domingo, María Laura; Bueno, M. (Professional Engineering Publishing, 2011)

Undergrounds and other metropolitan railway systems are characterized by their intense traffic, lasting up to 20 h per day, and so they need their maintenance work programmes to be optimized, implying an optimization of ...
Development of a system to obtain vertical track geometry measuring axle-box accelerations from in-service trains

Real Herráiz, Julia Irene; Montalbán Domingo, María Laura; Real, T.; Puig, V. (Research Center of the Public Institution "Vibromechanika", 2012)

Nowadays, metropolitan railway systems are in great demand, so they offer high-frequency services for the most part of the day. Therefore there are only a few hours during night available to carry out maintenance tasks. ...
Diseño de una herramienta para la determinación de pautas de arrastre óptimas en el transporte ferroviario. Aplicación a la red ferroviaria de la Empresa de Ferrocarriles del Estado de Chile

Montalbán Domingo, María Laura (Universitat Politècnica de València, 2015-09-08)

[EN] The increasing globalization of markets has led to a greater volume of both imports and exports in almost all countries over the world. Regarding the modal split of freight transport, it is easy to see the great ...
Diseño de una nueva cuña de transición, a partir de elementos prefabricados, para su uso en vías ferroviarias. Aplicación en la línea Antequera - Granada

Morales Ivorra, Silvia (Universitat Politècnica de València, 2016-10-20)

[EN] Nowadays, railway transport has experienced increases of traffic, axle loads and trains speed. Moreover, track quality, comfort and security requirements are today stricter than ever, especially in high-speed networks. ...
Estudio de la influencia del amolado del carril ferroviario en la reducción de vibraciones mediante el Método de los Elementos Finitos. Aplicación a las inmediaciones de la estación de Chamartín (Madrid)

Velarte González, José Luis (Universitat Politècnica de València, 2015-11-10)

[ES] The imperfections in the wheel-rail contact are one of the main sources of generation of railway vibrations. Consequently, it is essential to take expensive corrective maintenance measures, the results of which may ...
Estudio de las necesidades sociales y ambientales de España para la selección de criterios sostenibles en la contratación de obra pública

Aguilar Morocho, Madeleine Pilar (Universitat Politècnica de València, 2019-01-24)

[EN] The main objective of this work is to study the sustainable needs of Spain from the selection of criteria in the recruitment of public works, this work finally focuses the analysis in Spain to identify its sustainable ...
Estudio de los factores de retraso y sobrecoste en las obras de Ecuador

Manzano Alvarado, Mateo Xavier (Universitat Politècnica de València, 2020-01-27)

[EN] Delays and cost overruns in the construction works are a global phenomenon, their appearance is so common that it has come to assert that they are an integral part of the projects. Despite of the numerous efforts ...
Evaluación del impacto social en el diseño de tableros de hormigón del proyecto de construcción Autovía A-22. Lleida-Huesca. Tramo: Siétamo-Huesca.

Rosales García, Heyezkenia (Universitat Politècnica de València, 2020-12-14)

[ES] La Comisión Europea considera la sostenibilidad como uno de los objetivos prioritarios para los proyectos actuales y las inversiones futuras. Desde las instituciones académicas hasta las diferentes industrias, ha ...
Evaluacuón de la sostenibilidad en la contratación de obra pública en Ecuador

Siguencia Montero, María Paulina (Universitat Politècnica de València, 2019-01-23)

[EN] In recent years there have been significant reforms at international level within public procurement, which have been the object of internal analysis in multilateral instances of foreign trade development, being ...
Experimental Modal Analysis of transverse-cracked rails. Influence of the cracks on the real track behavior

Montalbán Domingo, María Laura; Baydal Giner, Beatriz; Zamorano Martín, Clara; Real Herráiz, Julia Irene (TECHNO-PRESS, 2014-12)

Rails are key elements in railway superstructure since these elements receive directly the train load transmitted by the wheels. Simultaneously, rails must provide effective stress transference to the rest of the track ...
Identification of Factors Affecting the Performance of Rural Road Projects in Colombia

Gomez-Cabrera, Adriana; Sanz-Benlloch, María Amalia; Montalbán-Domingo, Laura; Ponz Tienda, José Luis; Pellicer, Eugenio (MDPI AG, 2020-09-09)

[EN] Rural roads play an indispensable role in economic and social well-being, especially in developing countries, contributing to achieving the Sustainable Development Goals. For this reason, it is necessary to plan these ...
Impact of game-based learning on understanding Lean Construction Principles

Herrera, Rodrigo F.; Sanz-Benlloch, María Amalia; Montalbán-Domingo, Laura; García-Segura, Tatiana; Pellicer, Eugenio (MDPI AG, 2019-10-01)

[EN] Lean philosophy introduces a new approach for maximizing value while minimizing waste, facilitating sustainable practices at the same time. Companies have become aware of these improvements and are demanding students ...
MECHANICAL CHARACTERIZATION OF RAILWAYSTRUCTURES BASED ON VERTICAL STIFFNESS ANALYSIS AND RAILWAY SUBSTRUCTURE STRESS STATE

Montalbán Domingo, María Laura; Real Herráiz, Julia Irene; Real Herraiz, Teresa Pilar (SAGE Publications (UK and US), 2012)

This paper uses the finite element method to analyse the mechanical behaviour of different track types by considering the different conditions to which they may be subjected: superstructure, height, embankment and foundation ...
New Environmental Bituminous Mixture for Slab Track Design in Tram Networks

Real Herraiz, Teresa Pilar; Montalbán Domingo, María Laura; Alcañiz Martinez, Jesus H.; Berenguer Prieto, Jose Manuel; Real Herráiz, Julia Irene (Multi-Science Publishing, 2015-12)

New mobility needs in urban areas combined with eco-friendly transport modes development and urban integration requirements have promoted urban tram lines. This urban transportation system provides important benefits but ...
New laboratory procedure using a modal approach to obtain vibration attenuation properties of unaged and aged asphalt mixtures

Real Herraiz, Teresa Pilar; Montalbán Domingo, María Laura; Masanet Sendra, Claudio; Real Herráiz, Julia Irene (SAGE Publications, 2016-04)

[EN] During asphalt mixture service life, its structural and physical capabilities deteriorate progressively. A modal analysis using impact hammer excitation technique is put forward to measure the damping factor instead ...