Research Article
Experimental and Numerical Investigation on Hydraulic Fracture Propagation Law of Composite Rock Materials considering the Disturbing Stress Effect
Figure 2
Pipeline and domain in PFC2D: (a) fluid grid—solid green circle represents solid particles, middle area of particles represents drainage basin; solid red circle represents basin center, and green line segment represents pipeline; (b) domain and pipe— and : the width and length of pipelines are shown, respectively.
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| (b) |