Title: Discussion on Rational Width of Protective Coal Pillar for Mine Soft Rock Roadway
Abstract:In order to set up the rational width of the protective coal pillar in the south wing roadway of Wolonghu Mine,to meet the stability of the protective coal pillar and the rock failure zone theory of t...In order to set up the rational width of the protective coal pillar in the south wing roadway of Wolonghu Mine,to meet the stability of the protective coal pillar and the rock failure zone theory of the coal mining face end,the rational width of the protective coal pillar was discussed.The numerical simulation was applied to the comparison analysis of the stress filed to the different width of the coal pillars.The results showed that when the width of the protective coal pillar was 100m,the coal pillar would be suitable to keep the stability of the mine roadway.In additional the side wall and floor of the south wing railway roadway should be reinforced before the coal mining face terminated.Read More
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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