Surface Mining. Surface mining is used to obtain mineral ores that are near the surface. Blasting breaks up the soil and rocks that contain the ore. Enormous trucks haul the broken rocks to locations where the ores can be removed. Surface mining includes openpit mining, quarrying, and strip mining.
Open pit mining is a technique used to extract copper ore near the earth's surface. Open pit mining is the most widely used technique of mining copper today. It is accomplished by creating and using benches or terraces to gradually reach deeper under the earth's surface. Underground mining is used when the copper ore is not near the earth's surface.
Openpit mining is used when the orebodies are extensive and relatively close to the surface. The sterile/ore ratio is one of the factors which defines the exploitation method and the final dimensions of the mine cuts. In general, openpit mining consists of a system to exploit open pits with multiple benches.
Introduction. Click on New South Wales Mining to view an annotated map! Mining Methods. There are two classifications of mining: surface mining and underground mining. One very popular form of surface mining is open pit mining.
Geotechnical Considerations in Open Pit Mines Version Department of Minerals and Energy Page 3 of 49 INTRODUCTION The potentially hazardous nature of open pit mining requires the application of sound geotechnical engineering practice to mine design and general operating procedures, to allow
Mar 14, 2012· Environmental Consequences of Open Pit Mining An open pit mine is a type of excavation where surface and subsurface materials (soil and rock) are removed, typically through use of explosives and mechanical mining and hauling equipment, to gain access to commercially valuable ores or other buried natural resources, including coal and gemstones ...
Basic Definitions. Mine: an excavation made in the earth to extract minerals. Mining: the activity, occupation, and industry concerned with the extraction of minerals. Mining Engineering: the art and science applied to the process of mining and the operation of mines.
4. OPENPIT MINING AND TERMINOLOGY Description and terminology Normally, mining is accomplished by a method of ultimate pit limits in horizontal slices. Each bench may be taken to the ore body limit before successive benches are removed or various benches may be mined simultaneously. Figures and illustrate a side view and plan view of an open pit.
May 31, 2019· Exploration, Mining Processing Fundamentals. 2Day Training Course: THE Essential TechnoCommercial Introduction to Mining. Build your knowledge confidence in the mining business life cycle its technical jargon by examining its technical commercial components spanning exploration, geology, mining methods, production processing.
In a open pit coal mine, the pit bottom would be the bottom mined coal seam elevation, since it is usually feasible to extract multiple seams when surface mining coal. In a hard rock mine, the bottom of the pit would be the lowest level (elevation) that mining would be conducted on the ore being mined.
Depending on the deposit, uranium is mined in one of three ways: open pit, underground, or in situ recovery. Open pit. When uranium is found near the surface usually no more than 100 meters deep it can be extracted via open pit mining. In this method, soil and waste rock is removed by heavy equipment, allowing the ore to be accessed.
Oct 02, 2015· This is a very basic idea of how the Open Pit Mining process takes place. This was a very new mine when the footage was shot, and using very small machines.
There are two general approaches to mining: one method is known as open pit (, surface) mining, and the other method is called underground mining. Surface mining, which can be used when the ore is close to the surface of the Earth, is an older and more productive method than underground mining. Despite the
Jun 09, 2018· Former environment secretary Gina Lopez had put a stop to the use of the open pit mining method for the extraction of copper, gold, silver and complex ores in the country.
Jan 13, 2008· Okay "Alternative Mining Methods" Alternative as opposed to what? Current mining methods include underground tunnels, underground "block caving", open pit mines, strip mines, etc. Underground tunneling generally is the least "disturbing" to the area around it, because miners are following an ore vein.
The deposit will be mined by conventional open pit mining methods using an initial fleet of twelve [...] 227 tonne haul trucks, two electric hydraulic shovels, and various ancillary equipment to .
Jul 17, 2016· Surface mining includes mechanical excavation methods such as open pit and open cast (strip mining), and aqueous methods such as placer and solution mining. Underground mining is usually classified in three categories of methods: unsupported, supported, and caving.
value of a combined open pit and underground design. The most common method used to extract material is open pit, or surface, mining. Open pit mines vary in both shape and size, and their design is based on the deposit's block model, a model which discretizes the