Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds or rubies.
A world leader in mining equipment and rock excavation. Our constantly evolving offering for mining and rock excavation covers rock drilling, rock cutting, crushing and screening, loading and hauling, tunneling, quarrying and breaking and demolition.
Underwater drilling and blasting used for rock dredging is associated with several unwanted effects having potential to cause damage to surrounding structures and environment.
A drilling rig is a machine that creates holes in the earth's subsurface. Drilling rigs can be massive structures housing equipment used to drill water wells, oil wells, or natural gas extraction wells, or they can be small enough to be moved manually by one person and such are called augers.
A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back abutment, that is, the settled packs behind the face.
Hard Metals Australia Pty Limited. Australian owned and operated, Hard Metals Australia Pty Limited (HMA) is an engineering company specialising in the design and manufacture of tungsten carbide and polycrystalline diamond tools for the drilling, construction, mining and agricultural industries.
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.
Mining, process of extracting useful minerals from the surface of the Earth, including the seas.A mineral, with a few exceptions, is an inorganic substance occurring in nature that has a definite chemical composition and distinctive physical properties or molecular structure.
8 Sandvik Top Hammer Rock Drilling Tools THE SANDVIK GROUP Sandvik was established in 1862: today, it is a global industrial group with advanced products and world-leading
Our Mission Statement. Industrial & Mining Tools Co. Pvt. Ltd. is dedicated to technological leadership in manufacturing, marketing and sales of Pneumatic Tools, Rock Drills and Parts for the mining industry.
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.