Keyword [Barrier pillars] Result: 1 - 5 | Page: 1 of 1 1.  Study On Numerical Test Of Water Barrier Pillars For Gently Inclined Coal Seam Under Alluvium 2.  A Study On Substitution Of Barrier Pillars Extracted By Open-pit And Underground Joint Mining 3.  Research On The Stability And Support Parameter Of Tunnel In Barrier Pillar Stoping Of Dongguashan Copper Mines 4.  Comprehensive Study Of Safety Mining Technology On Complex Watery Deposit 5.  Theoretical And Experimental Research On The Reasonable Width Design Of Water Barrier Pillars For Mining Around Reservoir In Shallow Coal Seam   <<First  <Prev  Next>  Last>>  Jump to

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