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Using a Fluid–Solid Coupled Numerical Simulation to Determine a Suitable Size for Barrier Pillars When Mining Shallow Coal Seams Beneath an Unconsolidated, Confined Aquifer

Geotechnical EngineeringHydrogeologyEngineeringBarrier PillarsCivil EngineeringMining EngineeringUnderground ConstructionEngineering GeologySuitable SizeRock Properties