Roadway failure and support in a coal seam underlying a previously mined coal seam

来源 :矿业科学技术学报：英文版 | 被引量 : 0次 | 上传用户：sxtld

【摘要】

：

The influence of an upper,mined coal seam on the stability of rock surrounding a roadway in a lower coal seam is examined.The technical problems of roadway cont

【作者】

：

Lu Yinlong Wang Lianguo Zhang

【机构】

：

StateKeyLaboratoryofGeomechanicsandDeepUndergroundEngineering,SchoolofMines

【出处】

：

矿业科学技术学报：英文版

【发表日期】

：

2012年5期

【关键词】

：

煤层巷道开采煤层结构设计巷道围岩地质条件巷道控制数值模拟底板破坏 Adjacent coal seams Floor destruction of

【基金项目】

：

supported by the National Natural Science Foundation of China （No.50874103）, the National Basic Research Program of China （No.2010CB226805）, the Natural Science Foundation of Jiangsu Province （No.BK20

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The influence of an upper,mined coal seam on the stability of rock surrounding a roadway in a lower coal seam is examined.The technical problems of roadway control are discussed based on the geological conditions existing in the Liyazhuang Mine No.2 coal

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Roadway failure and support in a coal seam underlying a previously mined coal seam

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