Topic: Underground Coal Mining Technology
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Answers to Common Questions
how is underground coal mined?
There are two basic types of underground mining methods: room and pillar and longwall. In room and pillar mines, coal is removed by cutting rooms, or large tunnels, in the solid coal, leaving pillars of coal for roof support. Longwall minin... Read More »
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How deep are underground coal mines?
we dont say a fix depth of underground mine becoz that is depends on geological conditions of the area where we mined and also depends the property of mineral which have to be mined. Companies engaged in this industry extract coal that lies... Read More »
Source: http://wiki.answers.com/Q/How_deep_are_underground_coal_mines
How has technology solved the coal mining problems?
hahahaha loser Read More »
Source: http://wiki.answers.com/Q/How_has_technology_solved_the_coal_mini...
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Underground Coal Mining Technology
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Answers to Other Common Questions
It forbade the employment of boys under the age of 10 yrs, and banned employment of women of any age. wrong^ the correct answer is forbade the employment of women and boys under 10 years of age in the mines!!
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Source: http://wiki.answers.com/Q/When_the_1842_Coal_Mines_Act_forbade_th...
There are over 1,000 surface mines and more than 1,000 underground m...
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Technological success has changed the life of everyone in the world and it has also changed the way coal mining companies explore and market coal. High-tech and safe exploitation and usage of coal is the demand of the 21st century. In order...
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Source: http://wiki.answers.com/Q/How_has_technology_affected_the_mining_...
Why do you think that it is not obtained that way? Coal has been dug from underground for hundreds of years. It still is in many places. When coal is near the surface, then surface mining procedures can be used. The kind of mining used depe...
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Source: http://answers.yahoo.com/question/index?qid=20111101053829AAllhPc
Trucks, cranes and explosives.
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Source: http://answers.yahoo.com/question/index?qid=20100120064748AAAbNTB
The United States has been endowed with a wealth of natural...
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