Electronic Resource
Rock Fracture Mechanics and Fracture Criteria
For rock engineering projects, the cutting and fragmenting of rocks has attracted
much attention. Exploring the fracture characteristics of rocks is helpful in achieving
efficient and sustainable excavation for mining and tunneling engineering. The fracture toughness of rocks is a crucial mechanical indicator that weighs the initiation
and extension of cracks during the breaking process. The microwave-assisted rockfragmentation approach, as a clean, efficient, and convenient method of rock fragmentation, was adopted by Yang et al. [1] to investigate combined-mode I/II fracture
properties of basalt under different irradiation times ranging from 0 to 300 s.
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