Coal mining is not only a dangerous job, but also life threatening and deadly. Many accidents have happened over the years and coal mining is less popular than it was when it first started. Even though today fifty percent of our electricity is powered by coal.
There are four different types of coalmines, each very different. The first type are drift or slope mines, they are driven into valley walls near seams of coal. The second types of mines are shaft mines, these types of mines use pumps to remove water. Boreholes are drilled to relieve water pressure for safer mining. The third types of mines are surface mines. Surface mines use draglines, which can remove up to 200ft of coal in a single pass. A dragline is a machine used in surface mining to remove overburden. Overburden is layers of earth and rock covering a coal seam. Miners leave the overburden rock where it acids and metals into streams to add the discharges from the abandoned deep mines. Finally, the forth type of mine is called a deep mine. A deep mine was created to extract coal buried deep underground. Deep mines contain shafts dug straight down to the coal.
On January 6, 2006 statistics released in the first week of the new year shows that 2005 and 2000 were the only two years with the least deaths and accidents in china. In 2000 there were 2,863 accidents and 5,798 deaths. 2001 had 3,082 accidents and 5,670 deaths. In 2002 china had 4,344 accidents and 6,995 deaths. 2003 shows 4,143 accidents and 6,434 deaths. 2004 had 3,639 accidents and 6,027 deaths and finally 2005 shows that there were 3,341 accidents and 5,986 deaths in china. The United States averages around 30 mining deaths per year when China averages around 6,000 deaths a year. China has been improving its safety record over the past few years. Coal miners use giant machines to remove coal from the earth. They use two methods, surface mining and underground mining. Many of the United States’ coal mines are near the earth’s...
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