Application of Thermal Fragmentation in Australian Hard Rock Underground Narrow-Vein Mining

Electric LHDs in Underground Hard Rock Mining: A Cost/Benefit Analysis

System Analysis and Simulation of Narrow Vein Mining Method with Underground Pre-concentration

The application of underground pre-concentration technology to narrow vein mining has the potential to change the entire economics of bulk mining methods when used in narrow vein situations. The rejection of waste at or near the face means that a higher-grade ore can be sent to surface. The waste rock can be reused directly as backfill. Swelling of the muck through blasting means that only 60 t...

Application of laser scanning to measure fragmentation in underground mines

The particle size distribution of fragmented rock in mines significantly affects operational performance of loading equipment, materials handling and crushing systems. A number of methods to measure rock fragmentation exist at present, however these systems have a number of shortcomings in an underground environment. This paper outlines the first implementation of high resolution 3D laser scann...

A new method to improve operating performance for underground hard rock mining with new scheduling , controlling and forecasting techniques

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A New Concept for Selective Mechanical Mining of Hard Rock

Over the last several decades mechanical mining machines have developed into highly productive, light weight, mobile machines which are able to economically mine many soft rock ore bodies. Due to the utilization of disc cutters Tunnel Boring Machines, with great mass and limited mobility, have developed the ability to cut the hardest rocks at high production rates. Technological advancements ha...