Study on the economic mining method for the close quarter coal seams with thin rock sheet

来源 :煤炭学报：英文版 | 被引量 : 0次 | 上传用户：wish_hjl

【摘要】

：

The paper presents the mining method for the close quarter coal seams with thin rock sheet, that is mining the low coal seam, recovering the top coal seam after

【作者】

：

勾攀峰陈兆强员小有

【机构】

：

Dept.ofResurceandMaterialEngineering,PingdingshanMiningGroup

【出处】

：

煤炭学报：英文版

【发表日期】

：

2001年2期

【关键词】

：

煤矿采煤工艺技术效益经济效益岩石 close quarter coal seams mining method recovering top coal

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The paper presents the mining method for the close quarter coal seams with thin rock sheet, that is mining the low coal seam, recovering the top coal seam after putting down the roof rock of the low coal seam. Practice has proved that in recovering the to

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Study on the economic mining method for the close quarter coal seams with thin rock sheet

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