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Optimización del uso de una rozadora para la excavación del túnel del Proyecto de Ampliación de la Planta Cachí

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optimizacion_uso_rozadora_excavacion_tunel_proyecto_ampliacion_planta_cachi.pdf (2.022Mb)
Date
2011
Author
Solano-Quirós, Alberto
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Abstract
The construction of tunnels is an activity that is performed in our country mainly as part of the works necessary for the generation of electrical energy, generally using the conventional methodology for excavation. As a result of a consultancy to the Cachí Plant Expansion project, was born the idea of using a roadheader, being this the first time that a miner would be used for digging a tunnel in Costa Rica. The intention of this project is, in addition to creating a spreadsheet of yields of progress that is reliable; to analyze scenarios in order to be able to propose ideas on how to optimize the use of the roadheader; taking into account the geometrical and geotechnical characteristics of the tunnel and at the same time that involve the necessary activities to comply with a cycle of excavation as the extraction of materials and implementation of temporary support. The performance calculations are based on cycles of excavation with times of activities already known and used, from these results, is the times that could be reduced and what activities can be done in parallel are discussed, due to the facilities that the riper presents. It is shown that the use of the roadheader significantly reduces the time of completion of the tunnel to dig, achieving compressed dead times and placing tasks in parallel, while this is not possible with the convetional method.
Description
Proyecto de Graduación (Licenciatura en Ingeniería en Construcción) Instituto Tecnológico de Costa Rica, Escuela de Ingeniería en Construcción, 2011.
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https://hdl.handle.net/2238/6147
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