Drilling and blasting is the controlled use of and other methods, such as gas pressure blasting pyrotechnics, to break for . It is practiced most often in , and such as , tunnel or road construction. The result of rock blasting is often known as a rock cut. Drilling and blasting currently utilizes many different varieties of wit. [pdf]
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. Drilling and blasting currently utilizes many different varieties of explosive. HistoryThe use of explosives in mining goes back to the year 1627, when was first used in place of mechanical tools in the (now ) town of . The innovation spread quickly throughout. .
As the name suggests, drilling and blasting works as follows: • A blast pattern is created• A number of holes are drilled into the rock, which are then partially filled with explosives.. [pdf]
When the rock drill arrives from the factory, the inside of the tool is coated with heavy oil to prevent corrosion. After unpacking and. .
Every day before using the drill, blow out the air hose to clear it from accumulated dirt and moisture. .
Check that all of the drilling equipment is in good working order. Check that the impact surface of the drill steel shank is flat with no signs of wear. Make sure that the air inlet and exhaust. .
Fill the lubricator (located on top of the cylinder) with oil if necessary. Always use a recommended lubricant. [pdf]
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