Diseño de portales evitando o reduciendo el corte en rocas.
Geometrical alignment conditions as well as topography restrictions lead to portal designs, which do not necessarily intersect the ground in a desired perpendicular angle. Lack of portal design guidelines and a vague understanding on the rock mass yields, therefore, to conservative (heavy/stiff supp...
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| Tipo de recurso: | tesis de maestría |
| Estado: | Versión publicada |
| Fecha de publicación: | 2017 |
| País: | Colombia |
| Institución: | Escuela Colombiana de Ingeniería Julio Garavito |
| Repositorio: | Repositorio Institucional ECI |
| Idioma: | español |
| OAI Identifier: | oai:repositorio.escuelaing.edu.co:001/556 |
| Acceso en línea: | http://catalogo-intra.escuelaing.edu.co/cgi-bin/koha/catalogue/detail.pl?biblionumber=20037 https://repositorio.escuelaing.edu.co/handle/001/556 |
| Access Level: | acceso abierto |
| Palabra clave: | Diseño de portales Túneles Portales sesgados Portales con poca cobertura Design portals Tunnel Portals skewed Portals with low overburden |
| Sumario: | Geometrical alignment conditions as well as topography restrictions lead to portal designs, which do not necessarily intersect the ground in a desired perpendicular angle. Lack of portal design guidelines and a vague understanding on the rock mass yields, therefore, to conservative (heavy/stiff support) portal designs, complex construction procedures, longer construction time and a higher environmental impact. The present work proposes a new approach for skewed portal design based on a complete understanding of the rock mass behavior and its failure mechanisms. The approach is based on 2D numerical models and complemented with 3D model for comparison and optimization. A study case in the Andes range is presented, where conventional and skewed portals have been constructed. |
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