Thrust and torque components on mixed-face EPB drives
In this communication we propose a method to estimate net thrust and torque applied at the excavation front by cutting tools from EPB machines when they are working in mixed faces constituted by soils and soft rock. The method is inspired by similar simplifications used for the analysis of TBM drive...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/106052 |
| Acceso en línea: | https://hdl.handle.net/2117/106052 https://dx.doi.org/10.1016/j.tust.2016.01.037 |
| Access Level: | acceso abierto |
| Palabra clave: | Boring machinery EPB machine Thrust Torque Cutting tool Heterogeneous media Soil Tuneladores Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Túnels i excavacions |
| Sumario: | In this communication we propose a method to estimate net thrust and torque applied at the excavation front by cutting tools from EPB machines when they are working in mixed faces constituted by soils and soft rock. The method is inspired by similar simplifications used for the analysis of TBM drives in rock. The proposal is validated using a database of EPB registers which were gathered from more than 35 km of tunnel drives excavated in soils, soft rock and heterogeneous media. The results allow us to assess the influence of the type of ground excavated and its geotechnical properties on the net thrust and torque applied. |
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