SELECTION CRITERIA FOR EXCAVATION METHOD . EXAMPLES – ROADHEADER SELECTION . 8 • Flexible system – profile, alignment • Accurate profiling – less over break, less concrete cost • Low primary investment • Fast mobilization
Excavation performance is a term used in underground ... Roadheader excavation performance - geological and geotechnical influences ... the choice of an economic tunnelling method is normally admitted a certain priority, special investigations for rock fragmentation - e.g. the cutting performance or the wear of the ...
Roadheader Operating Method. A. Traveling Mechanism 1. There are two operating sticks controlling the movement of the machine. Use the left stick to turn left and right stick to turn right. 2. Pull the operating stick forward to make the roadheader go forward, and pull …
Once a decision has been made to go underground, the specific mining method selected depends on the size, shape, and orientation of the ore body, the grade of mineralization, the strength of the rock materials, and the depths involved.
To verify the accuracy of the analysis method, vibration modal test of a EBZ-160 roadheader rotary table was conducted . The experiment system used in the modal tests consisted of an excitation system, a measurement system, and an analysis system, as shown in Figure 10 .
Ultra-wideband pose detection method based on TDOA positioning model for boom-type roadheader The TDOA positioning model  ,  , i.e. differential or hyperbolic positioning models, can be applied for passive and active positioning.
excavation method regarding the rock and rock mass properties does in fact imply a significant risk ... Rock Mechanical Aspects of Roadheader Excavation Uwe Restner
Roadheader, one of the mechanized excavation equipments, has an exceptional place among the other excavation methods. Determination of the stability states of the roadheader is an important matter for the efficiency of excavation.
Roadheader applications in mining and tunneling Article (PDF Available) in Mining Engineering 50(3) · January 1998 with 2,565 Reads Cite this publication
KAMY series of Roadheaders offers the best cutting performance in a wide range of rock formations. Equipped with geometrically optimized transverse or longitudinal cutter heads, these flexible machines can be used to excavate subway tunnels, road tunnels, railway tunnels and water tunnels without using explosives.