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Research on Rational Width of Chain Coal-pillar in Large Mining Height Workface Recovery Roadway of Shallow Coal Seam
Pages: 61-64
Year: Issue:  12
Journal: Safety in Coal Mines

Keyword:  shallow coal seamlarge mining heightmining roadwaycoal-pillar width;
Abstract: 为研究近浅埋煤层大采高工作面合理护巷煤柱的留设问题,以和善煤矿5103工作面回采巷道为研究对象,通过理论计算和数值模拟分析,得出了合理的护巷煤柱宽度为25 m。现场应用后实测回采巷道顶底和两帮移近量均为35 mm左右,从而论证了其可行性。
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