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CHEN Wei, HAN Jia-guang, XUE Bo, CHEN Liang. Surrounding Rock Control Technology of Gob-side Entry Retraining in Steeply Dipping Thin Seam[J]. Safety in Coal Mines, 2012, 43(5): 39-42.
Citation: CHEN Wei, HAN Jia-guang, XUE Bo, CHEN Liang. Surrounding Rock Control Technology of Gob-side Entry Retraining in Steeply Dipping Thin Seam[J]. Safety in Coal Mines, 2012, 43(5): 39-42.
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Surrounding Rock Control Technology of Gob-side Entry Retraining in Steeply Dipping Thin Seam

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  • Published Date: May 09, 2012
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  • Aiming at the large angle,thin coal seams,maintenance for a long time and big deformation at upwind lane of the 62110 working face in Xinzhuangzi coal mine,the paper analyzed the supporting characteristics of this roadway under these conditions,proposed combined support by using bolting and grouting and laneway′s side filling to support the retaining,simulated and analyzed the influence of different filling wall size on the retaining effect with FLAC2D5.0 software.Observations results of mine pressure show that after using bolting and grouting,with the advancing of working face and the increasing of the filling wall intensity,bear pressure of the wall is increasing too,but the amount of roadway advancement is a trend of jumping reducing.
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    • References (9)
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