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- W2380405781 abstract "In order to mine safely near collapsed mined-out area and to maximize the recovery of resources in Dabaoshan Mine,the mechanics analysis model has been established for the security pillar near the collapsed mined-out area,from which the formula for calculating the inner stress of pillar and the depth of mining,stope height and the width of the pillar have been obtained.The reasonable size of the security pillar in Dabaoshan Mine is gained with the reliability theory.The results show that the smaller the width of the pillar is,the higher the vertical stress in the pillar is,and the higher the exploitation height is,the easier the pillars are destroyed.Different widths of the security pillars under different exploitation height were recommended in combination of Dabaoshan Mine′s actual mining project near collapsed mined-out area." @default.
- W2380405781 created "2016-06-24" @default.
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- W2380405781 date "2009-01-01" @default.
- W2380405781 modified "2023-09-23" @default.
- W2380405781 title "Research on Reliability of Mining Near Subsided Cavity" @default.
- W2380405781 hasPublicationYear "2009" @default.
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