Experimental and Numerical Analysis of Rock Burst Tendency and Crack Development Characteristics of Tianhu Granite

Table 3

Stresses in different stages during rock burst experiment.

Sample number	In situ stress (MPa); //	Rock burst stress (MPa); //	Stress ratio (/)
C1	19.2/13.2/12.0	159.2/13.7/0.0	8.29
C2	19.1/13.3/12.0	142.3/14.7/0.0	7.45
C3	20.1/13.0/11.9	188.7/13.4/0.0	9.39
Average	19.5/13.2/12.0	163.4/13.9/0.0	8.38