Now showing items 72-91 of 104
Valdebenito, Galo E. (Date of defense: 2009-05-29)
Terremotos recientes han demostrado la gran vulnerabilidad de algunos puentes ante movimiento fuerte. Los de tipo atirantado constituyen una tipología estructural muy atractiva, y que actualmente es empleada para muchos ...
Offeddu, Francesco G. (Date of defense: 2015-10-30)
Waters from mines (acid mine drainage-AMD), contain elevated concentrations of SO-24, Fe and other contaminant metals, which can persist in the environment during centuries. The purpose of AMD treatments is to retain metals ...
Yazgan, Ahmet Utku (Date of defense: 2012-09-07)
This work proposes design energy spectra in terms of an equivalent velocity, intended for regions with design peak acceleration 0.3 g or higher. These spectra have been derived through linear and nonlinear dynamic analyses ...
Bravo González, Diego Andrés (Date of defense: 2010-06-18)
Energy input spectra applicable to the seismic design of structures in moderate-to-high seismicity regions such as Colombia are proposed. They are derived from the bilinear envelope of individual spectra obtained for 144 ...
Pérez Gracia, María de la Vega (Date of defense: 2001-10-26)
.<br/>El georradar es una herramienta cada vez más utilizada en diferentes ámbitos geológicos, medioambientales y de Ingeniería Civil, así como en estudios de caracterización de yacimientos arqueológicos y de diagnóstico ...
Alcalá García, Francisco Javier (Date of defense: 2006-02-06)
Esta tesis doctoral sienta las bases para calcular la recarga por la lluvia a los acuíferos por balance del ión cloruro (CMB), estimando en régimen estacionario y discutiendo su valor distribuido para todo el territorio ...
Portilla Gamboa, Modesto Eusebio (Date of defense: 2014-10-28)
En este documento de Tesis Doctoral, se presenta la recopilación, reconstrucción y análisis de los inventarios de movimientos en masa (MM) y los campos de lluvias para tres eventos históricos en los Pirineos, de los que ...
González Páez, Claudia Verónica (Date of defense: 2014-10-20)
Una base de datos de 33 km de registros de túnel de EPB en la zona de Barcelona se ha examinado en detalle desde el punto de vista de recambio de herramientas de corte y rendimiento de la excavación mecanizada. La base de ...
Poch Massegú, Ricard (Date of defense: 2012-03-30)
Intensive farming often leads environmental consequences. This is the case of the study area of this thesis: the Empordà, a region with a variety of intensive crops (fruits, cereals, forage,...) and manifest problems of ...
Henri, Christopher (Date of defense: 2015-07-09)
Human impact on groundwater resources has led to a rapid growth of social concerns worldwide owing to an increasing presence of toxic chemicals released in the subsurface. Risk assessment provides the scientific tool needed ...
Gharibnezhad, Fahit (Date of defense: 2014-04-07)
This thesis is devoted to present some novel techniques in Structural Health Monitoring (SHM). SHM is a developing field that tries to monitor structures to make sure that they remain in their desired condition to avoid ...
Willmann, Matthias (Date of defense: 2008-12-05)
La heterogeneidad de la conductividad hidráulica es bien conocida, pudiendo cambiar varios órdenes de magnitud en poca distancia. Esto afecta nuestras observaciones de los procesos naturales. Para poder explicar la realidad ...
Abarca Cameo, Elena (Date of defense: 2006-05-05)
Modelling seawater intrusion (SWI) has evolved from a tool for understanding to a water management need. Yet, it remains a challenge. Difficulties arise from the assessment of dispersion coefficients and the complexity of ...
Torres Sánchez, Ester (Date of defense: 2013-11-15)
The discharge of acid mine drainage into a water reservoir may seriously affect the water quality. In this setting, sediment is commonly thought to act as a sink for pollutants. However, redox oscillations in the bottom ...
Montaña Peña, Miguel Ángel (Date of defense: 2015-02-09)
A number of mid-height steel buildings have been erected recently in Bogotá. Their seismic risk might be high, given the new microzonation of Bogotá and the lack of comprehensive previous studies; noticeably, the response ...
Gámez Torrent, Desiré (Date of defense: 2007-12-20)
Most coastal aquifers undergo seawater intrusion. Mitigating this risk depends on a sound knowledge of flow mechanisms, well located and constructed wells, an effective management, suitable policies and the desire to ...
Figueras Vila, Sara (Date of defense: 1994-07-06)
La Tesi s'emmarca en els estudis de risc sísmic que es duen a terme en Servei Geològic de Catalunya, la contribució d'aquest treball a aquests estudis ha consistit en la determinació precisa del moviment sísmic que es pot ...
Carreño, M. L. (Martha Liliana) (Date of defense: 2006-09-14)
The objectives of this thesis are: the ex ante seismic risk evaluation for urban centers, the disaster risk management evaluation and the ex post risk evaluation of the damaged buildings after an earthquake. A complete ...
Castagna, Salvatore (Date of defense: 2007-05-21)
En el siglo pasado se ha desarrollado una nueva energía: la nuclear. Su aplicación comprende tanto el campo militar como el campo civil. Unos de los aspectos más interesantes es el uso de esta energía para la producción ...
Zandarín Iragorre, María Teresa (Date of defense: 2010-11-22)
The thesis presents numerical and experimental studies on joints.<br/>A formulation for the coupled analysis of thermo- hydro- mechanical problems in joints is presented. The work involves the establishment of equilibrium ...