Five persons were found dead after part of an open cast coal mine caved in, in Dhanbad district of Jharkhand.
About:
Officials said the deceased persons had illegally entered the open cast mine located at the Eastern Coalfields Limited (ECL) in Mugma.
Open cast mining is a traditional ‘cone-shaped’ excavation done for surface mining of coal that does not deep shafts.
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique of extracting rock or minerals from the earth from an open-air pit, sometimes known as a borrow.
This form of mining differs from extractive methods that require tunnelling into the earth, such as long wall mining. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface.
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