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 ...
[EN] Today, critical deficiencies hinder the effective inclusion of social criteria in public-works procurement. The primary reasons for this are the lack of information and objective social assessment methods in the ...
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 ...
Ornaghi, Juan Matias(Universitat Politècnica de València, 2021-07-08)
[ES] El sector de la construcción en los últimos tiempos presenta bajos rendimientos en términos de productividad, pese al rol fundamental que cumple en el desarrollo de las sociedades, sobre todo si se la compara con otros ...
Chamie Carrillo, Samir Alfredo(Universitat Politècnica de València, 2021-11-02)
[ES] DESCRIPCIÓN:
El Trabajo Fin de Máster lleva a cabo un estudio de las causas que producen incremento en el coste y en el plazo en la construcción de vías terciarias en Colombia, a partir de los datos públicos que se ...
León Torres, Diego Hernán(Universitat Politècnica de València, 2022-05-31)
[ES] La contratación pública representa una gran parte del producto interno de cada país y el éxito de un proceso de contratación está directamente relacionado con la correcta selección del contratista. Esta investigación ...
Julca Varas, Carlos Antonio(Universitat Politècnica de València, 2022-05-16)
[ES] El presente trabajo fin de máster analiza los riesgos que provocan retraso y sobrecoste durante la fase de ejecución de obras de suministro de agua potable y saneamiento en Perú. Para ello se partió de una revisión ...
[EN] The growing importance of international construction activity forces companies to find out what competitive advantages to provide and barriers to overcome to achieve success, considering the particular characteristics ...
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 ...
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 ...
Espinoza Valarezo, Pedro Antonio(Universitat Politècnica de València, 2019-01-23)
[EN] The road network is one of the greatest patrimonial assets of a country, state or city. It also provides a fundamental basis for the growth and economic development, giving huge economic and social benefits. Likewise, ...
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 ...
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 ...
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. ...
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 ...
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. ...
Fabregat Barberán, Francisco(Universitat Politècnica de València, 2019-02-04)
[EN] Currently, environmental sustainability is gaining importance in the procurement of public works, affecting each of the stages of the life cycle of infrastructure. With the entry into effect of the new law on public ...
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 ...
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 ...
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 ...