Shaolun Du
Conical surfaceGeologyExplosive materialGeotechnical engineeringIndentationStress concentrationStress conditionsRock breakageHigh stressSpecific energy
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#1Shaofeng Wang (CSU: Central South University)H-Index: 22
#2Xibing Li (CSU: Central South University)H-Index: 44
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Abstract Stress conditions around deep underground mine openings can significantly influence rock fragmentation and stability, and thus the cuttability of the targeted rock. In this study, rock breakage experiments and associated regression analyses indicate nonlinear rock cuttabilities (decreasing followed by increasing) with increases in the differences between biaxial confining stresses and the values of uniaxial confining stresses. Rock breakages were found to be efficient and safe under low...
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