Orientadora: Profa. Dra. Silvana Maria Zioni / Dissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Planejamento e Gestão do Território, 2015. / Esta dissertação consiste em uma reflexão sobre os sistemas urbanos que estruturam a cidade, nomeadamente de que modo as decisões globais sobre os mesmos transformam as dinâmicas dos espaços locais. Tomando como pretexto e ponto de partida os espaços residuais de infraestruturas viárias urbanas, apresenta um estudo acerca dos espaços públicos que sobraram no processo de planejamento urbanístico. Aborda os locais considerados como restos ou sobras de urbanização; resultantes do processo de implantação e construção de grandes infraestruturas, áreas que perderam sua identidade enquanto parte da vida da cidade. Duas visões opostas geralmente polarizam a discussão sobre estes espaços. A primeira, em relação ao desperdício que eles representam na cidade. A segunda, pelo contrário, destaca o seu potencial interesse como espaços de liberdade em um ambiente urbano, que é cada vez mais padronizado e regulamentado. A partir do entendimento de que esse processo de produção de espaços residuais é cheio de contradições e tensões, esta pesquisa procura compreender quais seriam os agentes e os processos em sua origem. Para isso, são investigadas as possibilidades de apropriação existentes em espaços remanescentes de intervenções urbanísticas e obras de infraestrutura, especialmente na região central da cidade de São Paulo, e para aferições de resultados, elege o Centro Cultural de São Paulo, a Praça Roosevelt, o Elevado Costa e Silva, e o Viaduto do Café, como exemplos e referências contextuais para o desenvolvimento do tema ¿ surgimentos de espaços residuais urbanos. / This dissertation consists of a reflection on urban systems that structure the city, including how global decisions on them transform the dynamics of local spaces. Taking as a pretext and starting point the residual spaces of urban road infrastructure, a study of public spaces left over in the urban planning process. The study addresses the sites considered to be debris or urbanization remains; resulting from the process of implementation and construction of major infrastructure, areas that have lost their identity as part of city life. Two opposing visions generally polarize the discussion about these spaces. First, regarding the waste in the city they represent. The second, on the contrary, highlights their potential interest as spaces of freedom in an urban environment, which is increasingly standardized and regulated. From the understanding that this waste spaces production process is full of contradictions and tensions, this research seeks to understand what are the agents and processes in origin. This research investigates the existing ownership opportunities in remaining spaces of urban interventions and infrastructure, especially in the central region of São Paulo, and measurements of results, elects the Cultural Center of São Paulo, the Roosevelt Square, the Elevado Costa e Silva - Minhocão, and the Viaduto do Café, as exemple and contextual references to the issue of development - arisings of urban residual spaces.

Les changements climatiques mesurés dans le Nord-ouest canadien au cours du XXIe siècle entraînent une dégradation du pergélisol. Certaines des principales conséquences physiques sont la fonte de la glace interstitielle lors du dégel du pergélisol, l’affaissement du sol et la réorganisation des réseaux de drainage. L’effet est particulièrement marqué pour les routes bâties sur le pergélisol, où des dépressions et des fentes se créent de façon récurrente, rendant la conduite dangereuse. Des observations et mesures de terrain effectuées à Beaver Creek (Yukon) entre 2008 et 2011 ont démontré qu’un autre processus très peu étudié et quantifié dégradait le pergélisol de façon rapide, soit la chaleur transmise au pergélisol par l’écoulement souterrain. Suite aux mesures de terrain effectuées (relevé topographique, étude géotechnique du sol, détermination de la hauteur de la nappe phréatique et des chenaux d’écoulement préférentiels, température de l’eau et du sol, profondeur du pergélisol et de la couche active), des modèles de transfert de chaleur par conduction et par advection ont été produits. Les résultats démontrent que l’écoulement souterrain dans la couche active et les zones de talik contribue à la détérioration du pergélisol via différents processus de transfert de chaleur conducto-convectifs. L’écoulement souterrain devrait être pris en considération dans tous les modèles et scénarios de dégradation du pergélisol. Avec une bonne caractérisation de l’environnement, le modèle de transfert de chaleur élaboré au cours de la présente recherche est applicable dans d’autres zones de pergélisol discontinu. / Climate changes affecting the North West portion of Canada alter the thermal state of the permafrost and promote permafrost degradation. The results are permafrost thawing, ground ice melting, surface drainage changes and soil subsidence. Road infrastructures built on permafrost are particularly sensitive to permafrost stability and integrity. Depressions in the road pavement and development of cracks and potholes are recurrent problems for northern infrastructure. Field measurements done along a road transect in the discontinuous permafrost zone near Beaver Creek (Yukon) between 2008 and 2010 demonstrated that another process, advective heat transfer induced by groundwater flow, is promoting permafrost degradation. This process remains poorly known and has not been quantified sufficiently in permafrost environments. Field data on topography, soil geotechnical properties, water table and preferential flowpath characterization, ground and water temperature and active layer and permafrost depth were collected to build coupled models of seepage (mass transfer) and heat transfers. Results indicate that convective heat transfer processes associated with groundwater flow can have a substantial impact on permafrost degradation. Groundwater flow processes should therefore be taken into account in permafrost evolution models and climate warming scenarios. With a good characterization of the environment, the model that has been developed in this present research is relevant in other discontinuous permafrost environments.

No description available.

This thesis deals technological project shopping centre in Aš. Technological phase solving realization floor finish in central structure. Thesis contains engineering report, studies report main structure, design of main machine and mechanisms, timelines, site equipment, controlling and testing plan, budget plan, plan of realization road infrastructure.