Variation in the Permeability of Intact and Fractured Rocks due to Transient Disturbances in Axial Stress or Pore Pressure

<div>Images of blue resin impregnated thin-section samples after the tests under (a) ΔσA = 8 MPa, PC = 5 MPa, PP = 0.5 MPa and (b) ΔPP = 0.8 MPa, PC = 5 MPa, PP = 0.5 MPa. Left: original images, middle: processed images to emphasize the blue resin, and right: magnified images.</div>

Advances in Civil Engineering

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Figure 19

Figure 19: Variation in the Permeability of Intact and Fractured Rocks due to Transient Disturbances in Axial Stress or Pore Pressure 