Meso fracture characteristics of granite and instability evolution law of surrounding rock in deep cavern.

Sci Rep · 2022 · PMC8864030 · PMID 35194080

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a decreasing trendno p-value reported

After 2000 steps of simulated excavation, the maximum principal stress of the two sides of the roadway showed a decreasing trend, and there was a fracture zone in the arch foot and vault of the roadway, as shown in Fig. 16 b.

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