Research Article
An Experimental Study on Cracking Behavior of Precracked Sandstone Specimens under Seepage Pressure
Figure 1
Geometry of hole and fissure in the sandstone specimens. α is the fissure angle, a is the fissure length, and d is the hole diameter. In this study, the center hole and fissure in sandstone specimens were machined by high-pressure water-jet cutting.
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