TBMs alternative to D & B in tunnel excavation

• Autor: Giraldo Paredez, Emiliano Mauro
• Formato: artículo
• Fecha de Publicación: 2010
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/345
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/iigeo/article/view/345
• Nivel de acceso: acceso abierto
• Materia: Continuous mining; tunneling machines; TBM; tunneling; tunnels; drilling; blasting; Minado continuo; máquinas tuneleras; tunelería; túneles; perforación; voladura

The Drilling and Blasting (D & B) in tunneling, has been replaced by a variety of types and sizes of tunneling machines (TBMs) for technological progress, productivity demands and environmental control. This study is intended as a framework for selecting the most suitable system of excavation under a minimum length to justify its application. Both the TBM MK 12 and the D & B were studied in the headrace tunnel No. 4 Hydroelectric Project Yuncan. We show that for digging long tunnels, TBM have greater advantages than the D & B, plus the minimum disturbance to the remaining rock, speed of excavation, increased safety for personnel and equipment, lack of gas blasting, minor excavation area, among others.