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Mine Collapse
 From Wikipedia, the free encyclopedia
When a mine tunnel falls in
it is referred to as a mine collapse. A mining accident is an accident that occurs during the process of mining minerals. Thousands of miners die from mining accidents each year, especially in the processes of coal mining and hard rock mining. Most of the deaths nowadays occur in developing countries, especially China and rural parts of developed countries.
Mining accidents can have a variety of causes, including leaks of poisonous gases such as hydrogen sulfide[1] or explosive natural gases, especially firedamp or methane,[2] dust explosions, collapsing of mine stopes, mining-induced seismicity, flooding, or general mechanical errors from improperly used or malfunctioning mining equipment (such as safety lamps or electrical equipment). Use of improper explosives underground can also cause methane and coal-dust explosions.
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