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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Μελέτη και προϋπολογισμός έργου σε όρυγμα του έργου οδοποιΐας "Κατασκευή οδού Ηγουμενίτσας-Πρέβεζας, βελτίωση κατά τμήματα, υποτμήμα 4: Καρτέρι Γερακάρι Πάργα από Χ. Θ. 0+000 έως Χ. Θ. 14.937,20

Γιαννέλου, Αλεξάνδρα 12 March 2013 (has links)
Στην παρούσα διπλωματική εργασία παρουσιάζεται η μελέτη της κατασκευής του οδικού έργου « Κατασκευή οδού Ηγουμενίτσας – Πρέβεζας, βελτίωση κατά τμήματα, υποτμήμα 4: Καρτέρι Γερακάρι – Πάργα από Χ. Θ. 0+000 έως Χ. Θ. 14.937,20 ». Έμφαση δίνεται στο τμήμα όπου παρουσιάζεται το μεγαλύτερο όρυγμα, δηλαδή από Χ.Θ. 2+168,78 έως Χ.Θ. 2+448,78. Σκοπός της διπλωματικής εργασίας είναι, μετά την αναλυτική και ολοκληρωμένη παρουσίαση της μελέτης, να γίνει ο προϋπολογισμός του έργου οδοποιίας. / In this paper we study the construction of road project 'Construction of road Igoumenitsa - Preveza, improvement in chambers subsection 4 Karteri Gerakari - Parga by Ch 0 +000 to Ch 14,937.20. " Emphasis is given in section showing the largest trench, by Ch 2+168.78 to Ch 2+448.78. The aim of this thesis is, after detailed and comprehensive presentation of the research to make the budget road construction project.
2

The Emotional Driver : A Study of the Driving Experience and the Road Context

Angulo, Julio January 2007 (has links)
In modern societies the activity of driving has become almost an essential routine. Vehicles are considered by many as indispensable tools for accomplishing their daily tasks and they are the main form of transportation for millions of people. The average driver spends, voluntarily, considerable amounts of time on the road, using their vehicle to transport himself even for small distances and knowing that its use presents him with some form of comfort and convenience; yet, drivers frequently regard their road experience as tiring and fastidious, but their persistence in using their vehicle at every opportunity serves as proof of a pleasurable experience. So far car manufacturers, traffic authorities and designers of technology have been mainly concerned with aspects of the road that ensure drivers safety, increase power engine, provide more comfort, and maintain better streets, etc; however, the actual feelings of the driver as he travels through the streets has not yet been taken into a great account by the developers of the road environment. For this reason this thesis tries to create awareness on the existence and constant presence of people’s emotions as they drive, which have the mutual power to influence their action on the road and their driving patterns. In order to capture a drivers’ emotional experience this study uses three main methods. One of them is Cultural Probes, consisting of common objects specifically Postcards, Pictures, and Web-logs, to measure unknown factors about the users. The second is the use of Ethnographic studies on the driving activities through the use of observations, the popular talk-aloud-protocol and the shadow method. Finally, the Experience Sampling Method is used, which tries to captures the experience of an individual as it unfolds in its natural context. With the combined used of these three methods some of the main factors of the road’s environment that are commonly able to influence the driver’s emotions in negative or positive ways were discovered, which include the intensity and type of light, the different types and sources of sound, the perceivable landscapes and surrounding architectures and the different kinds of continuously occurring interactions. These are just some of the many factors that can influence emotions on the road, and hopefully this study will open the curiosity for a deeper study of these and other aspects of the emotional driving experience. / Julio Angulo djjupra@gmail.com Reforma #60, Col. Atlantida, 04370 Mexico City, Mexico 66 - 3433 E. 49th Ave V5S 1M1 Vancouver, BC Canada
3

Avaliação da capacidade de suporte de solos "in situ" em obras viarias atraves do Cone de Penetração Dinamica : estudo experimental / Evaluation of in-situ bearing capacity of soils in road buildngs through the Dynamic Cone Penetrometer : experimental study

Berti, Carolina 19 December 2005 (has links)
Orientador: Cassio Eduardo Lima de Paiva / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo / Made available in DSpace on 2018-08-06T16:48:11Z (GMT). No. of bitstreams: 1 Berti_Carolina_M.pdf: 4127695 bytes, checksum: f8e52fd73231b7c47f0a12b5c7e759cc (MD5) Previous issue date: 2005 / Resumo: Esta pesquisa procurou estabelecer uma correlação entre os valores de capacidade de suporte resultantes dos ensaios CBR (Califórnia Bearing Ratio) versus DCP (Dynamic Cone Penetrometer), realizados com o solo proveniente de vias não-pavimentadas dentro do Campus da UNICAMP, situado em Campinas, São Paulo. O Cone de Penetração Dinâmica (DCP) é caracterizado como um equipamento simples, portátil e de baixo custo, cujo ensaio revela ser praticamente não-destrutivo. Com ele é possível determinar o perfil de resistência de camadas de solo compactadas ou em seu estado natural, controlar a execução de obras viárias e avaliar estruturas de pavimentos. Uma investigação do solo através de ensaios DCP e CBR conduziu ao desenvolvimento de modelos de regressão, correlacionando a capacidade de suporte obtida através de ensaios ¿in situ¿ com o auxílio do DCP, e ensaios de laboratório utilizando o ensaio de CBR e DCP. Através das informações contidas na literatura técnica, dos procedimentos experimentais efetuados e das análises de regressão realizadas, ficou evidenciado o relacionamento entre o DCP e o CBR, validando as correlações estabelecidas e propondo modelos próprios, aumentando a confiabilidade dos resultados dos ensaios DCP para avaliação da capacidade de suporte de solos / Abstract: This research establishes a correlation among the strength or supporting values of the tests: CBR (California Bearing Ratio) versus DCP (Dynamic Cone Penetrometer), accomplished with the soil originating from no-paved roads inside of the Campus of UNICAMP. The Cone of Dynamic Penetration (DCP) it is characterized as an equipment simple, portable and of low cost, whose tests reveals to be practically no-destructive. DCP test determines the profile of resistance of soil layers compacted or in your natural state, to control the execution of road buildings and to evaluate structures of pavements. An investigation of the soil through DCP and CBR tests led to the development of regression models, correlating the strength measures obtained through in-situ tests with the aid of DCP and laboratory tests using the CBR and DCP. Through the information contained in the technical literature, of the made experimental procedures and of the regression analyses accomplished, the relationship was evidenced between DCP and CBR, validating the established correlations and proposing own models, increasing the reliability of the results of the DCP tests for determining strength values of soils / Mestrado / Transportes / Mestre em Engenharia Civil

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