Title: Calculation of width of coal pillar at working face and stage coal pillar
Abstract:If the length of working face at a mining area of Tongchuan city in given geology and mining conditions is 80m, the total length of continuously digging will not be longer than 400m. Otherwise the bui...If the length of working face at a mining area of Tongchuan city in given geology and mining conditions is 80m, the total length of continuously digging will not be longer than 400m. Otherwise the buildings on the earth′s surface will be destroyed. The contradiction can be resolved by the establishment of coal pillar at working face and stage coal pillar. After validated by the numerical test software of flac3d, the destroying rank of earth′s surface is less than 1 under the condition of the two kind of widths mentioned above. The result is up to the standard. A new method is offered for the mine to establish coal pillar, and it has a positive meaning to environment protection and safe mining.Read More
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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