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Keyword [Waterproof pillar]
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1. Research On Stability Of Overlying Strata And Reasonable Waterproof Coal Pillar With Backfilling Mining In Steep Seam Under Water Body
2. Study On The Reasonable Retainning Of The Waterproof Coal Pillar Of Steep Medium & Thick Coal Seam With Hard Roof
3. A 3D Numerical Analysis Of F2 Fault Waterproof Pillar In Tao Yuan Coal Mine
4. A Case Study On Stochastic Distribution Feature Of Hydrologycal Parameters Of XinJi Thrust And Its Effect On Coal Mining
5. Discrete Element Analysis On The Waterproof Pillar To Coal Seam Mining Goaf Beside Large Fault
6. There Is No Key Strata Reducing Waterproof Coal Pillar Mining Under Ⅰ Classes Water Bodies
7. Design On The Reasonable Upper Mining Limit Undersea Of Sanshandao Gold Mine
8. Feasibility Reaearch On Recovery About Boundary Waterproof Pillar In Beiyi Backfill Mining Area In Xima Mine
9. Waterproof Pillar In The Large Body Of Water Kangjiawan Mine Safety Mining Research And Design
10. Dangerousness Evaluation Of Water Inrush In Fault While Mining Lower Coal Under Pressure In Baodian Coal Mine
11. Study On Reasonable Retainment Of Fault Waterproof Pillar Based On Hydro-fracturing Method
12. Similar Materials Simulation Analysis On The Waterproof Pillar Of Coal Seam Mining Goaf Beside Fault
13. Research On Height Of Water Flowing Fractured Zone Of Slice Excavation In Extremely Thick Coal Seam Of Barapukuria Colliery In Bangladesh
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