Strength Restoration of Cracked Sandstone and Coal under a Uniaxial Compression Test and Correlated Damage Source Location Based on Acoustic Emissions.

Underground rock masses have shown a general trend of natural balance over billions of years of ground movement.Nonetheless, man-made underground constructions disturb this balance and cause rock stability failure.Fractured rock masses are frequently encountered in underground constructions, and this study aims to restore the strength of rock masse

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