Mining-induced static and dynamic loading rate effect on rock damage and acoustic emission characteristic under uniaxial compression
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DOI: 10.1016/j.ssci.2019.03.003
Abstract: Abstract To further understand rock damage mechanisms under loading, evaluate coal burst danger and ensure stopping safety during coal mining, uniaxial compression tests of rock samples at different mining-induced loading rates were carried out. A… read more here.
Keywords: loading rate; mining induced; damage; rock damage ... See more keywords
Numerical Simulation on Damage and Failure Mechanism of Rock under Combined Multiple Strain Rates
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DOI: 10.1155/2018/4534250
Abstract: During underground hard-rock mining, the drilling and blasting method currently remains the most economical excavation method, and the rock may experience a multistrain-rate spectrum under quasi-static, dynamic, and rheological loading conditions and their combination as… read more here.
Keywords: damage failure; failure; strain rates; rock damage ... See more keywords
Theoretical and Experimental Study of the Effects of Impact Drilling Parameters on the Properties of Surrounding Rock Damage
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DOI: 10.1155/2020/8865619
Abstract: Using a self-designed hydraulic impact drilling test-bed and rock core drill, six groups of cylindrical granite specimens (93 mm dia. × 200 mm) containing central axial holes formed either by impact or nonimpact drilling methods were tested in uniaxial… read more here.
Keywords: impact drilling; impact power; damage; rock damage ... See more keywords