The Drilling and Blasting (D & B) in tunneling, has been replaced by a variety of types and sizes of tunneling machines (TBMs) for technological progress, productivity demands and environmental control.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.La Perforación y Voladura (P...
The use of roadheader (RH ) equipment for the underground mining of zinc ores in the San Vicente res...
In this article we publish the cutting and down-filling methods that the exploitation technology use...
This research work is based on the problem of unconsolidated soils, which occurred in the excavation...
The Drilling and Blasting (D & B) in tunneling, has been replaced by a variety of types and size...
The tunnel boring machines (TBM) are continuous mining equipment designed for the excavation of circ...
There is a continuous increase in the size and importance of tunnels made in connection with public ...
El empleo de tuneladoras TBM (Tunnel Boring Machine) es cada vez más frecuente aunque su opti...
The Sub drilling length in surface mining production drilling grids, can be reduced or eliminated by...
From the last decades of the XX century, various formulae have been proposed to estimate the perform...
Drilling and blasting is generally used for fragmenting hard in situ rock in mine excavation. This m...
The urban tunneling may generate significant problems. One of the main concerns is the unavoidable g...
This article studies the most outstanding characteristics of continuous boring machines and their dr...
The cutters in general are the essential elements to crush, break and move to the rock during an exc...
The objective of this work was to show the optimization generated by the implementation of the pumpa...
Tesis sobre el diseño de excavación de una galería principal de acceso, el objetivo general es reali...
The use of roadheader (RH ) equipment for the underground mining of zinc ores in the San Vicente res...
In this article we publish the cutting and down-filling methods that the exploitation technology use...
This research work is based on the problem of unconsolidated soils, which occurred in the excavation...
The Drilling and Blasting (D & B) in tunneling, has been replaced by a variety of types and size...
The tunnel boring machines (TBM) are continuous mining equipment designed for the excavation of circ...
There is a continuous increase in the size and importance of tunnels made in connection with public ...
El empleo de tuneladoras TBM (Tunnel Boring Machine) es cada vez más frecuente aunque su opti...
The Sub drilling length in surface mining production drilling grids, can be reduced or eliminated by...
From the last decades of the XX century, various formulae have been proposed to estimate the perform...
Drilling and blasting is generally used for fragmenting hard in situ rock in mine excavation. This m...
The urban tunneling may generate significant problems. One of the main concerns is the unavoidable g...
This article studies the most outstanding characteristics of continuous boring machines and their dr...
The cutters in general are the essential elements to crush, break and move to the rock during an exc...
The objective of this work was to show the optimization generated by the implementation of the pumpa...
Tesis sobre el diseño de excavación de una galería principal de acceso, el objetivo general es reali...
The use of roadheader (RH ) equipment for the underground mining of zinc ores in the San Vicente res...
In this article we publish the cutting and down-filling methods that the exploitation technology use...
This research work is based on the problem of unconsolidated soils, which occurred in the excavation...