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Study of Methane Drainage Borehole Destruction Induced by Rock Strata Movement
Author(s): 
Pages: 1-4,9
Year: Issue:  3
Journal: Safety in Coal Mines

Abstract: 煤层开采引起的岩层移动可能对卸压瓦斯抽放钻孔造成严重的破坏,并进而对瓦斯抽放工作造成不利的影响.基于煤层开采后的岩层移动规律,深入研究了卸压瓦斯抽放钻孔在采动影响下可能的破坏形式及力学分析,各种形式破坏可能发生的时间、位置和可能性,以及针对各种破坏的钻孔强度计算方法.
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