Advances in Civil Engineering / 2020 / Article / Tab 9

Research Article

Estimation of Rock Burst Grades Using Rock Mass Strength

Table 9

Calculation of rock burst grades at 4 verification points using the ratio of σc to σmax.

No. of verification pointsσc (MPa)σmax (MPa)σc (MPa)Estimated results of CHEGI criterion

163.9778.70.813Violent
250.3725.41.983Strong
355.3936.91.501Strong
442.5446.30.919Violent

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