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Rock blasting in Finland. Drilling and blasting is the controlled use of explosives and other methods, such as gas pressure blasting pyrotechnics, to break rock for excavation. It is practiced most often in mining, quarrying and civil engineering such as dam, tunnel or road construction. The result of rock blasting is often known as a rock cut.
Analysis and engineering of rock blasting for mining; Design and analysis of shaped charges and reactive armor; Design, analysis and application of military explosives such as grenades, mines, shells, aerial bombs, missile warheads, etc. Bomb disposal; Drilling and blasting; Demolition
Ventilation is the primary method of clearing hazardous gases and/or dust which are created from drilling and blasting activity (e.g., silica dust, NOx), diesel equipment (e.g., diesel particulate, carbon monoxide), or to protect against gases that are naturally emanating from the rock (e.g., radon gas).
Rock drill mounted on a tripod. The large objects on the legs are weights to anchor it down into position. In reciprocating power drills, the drilling cylinder is mounted on a feed-screw, such that as the hole is drilled and the drilling point recedes from the rock face, the drill-bit continues to move into it, while the anchor point (on the tripod or column) remains in place. [11]
Drilling the Bakken Formation in the Williston Basin Large hole drilling rig for blast-hole drilling. A drilling rig is an integrated system that drills wells, such as oil or water wells, or holes for piling and other construction purposes, into the earth's subsurface.
Surface gold mine with haul truck in foreground, in Kalgoorlie, Australia. Mining engineering is the extraction of minerals from the ground. It is associated with many other disciplines, such as mineral processing, exploration, excavation, geology, metallurgy, geotechnical engineering and surveying.
Drilling and blasting replaced manual cutting of ores. Lately, the use of continuous mining machines has become the order of the day to comply with environmental regulations, protect surface features, and also achieve an increased production rate. As the concern for safety in mines increased and highly stringent regulations were put in place ...
A drilling jumbo consists of one, two or three rock drill carriages, sometimes a platform, which the miner stands on to load the holes with explosives, clear the face of the tunnel or do something else. [further explanation needed] The carriages are bolted onto the chassis, which supports the miner's cabin as well as the engine. Although modern ...