Research Article

Investigation into Macro- and Microcrack Propagation Mechanism of Red Sandstone under Different Confining Pressures Using 3D Numerical Simulation and CT Verification

Figure 12

The number of microcracks in red sandstone under different confining pressure conditions: (a) 5 MPa; (b) 10 MPa; (c) 15 MPa; (d) 20 MPa.
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