Mechanisms of Crack Initiation and Propagation in Dense Linear Multihole Directional Hydraulic Fracturing

<div>The manufacture of specimens and loading (<i>σ</i><sub>1</sub> &gt; <i>σ</i><sub>2</sub> &gt; <i>σ</i><sub>3</sub>). (a) Cubic mode. (b) The shape of the specimen. (c) Place in the loading frame.</div>

Shock and Vibration

fig3

Figure 3

Figure 3: Mechanisms of Crack Initiation and Propagation in Dense Linear Multihole Directional Hydraulic Fracturing 