Laboratory Testing on Energy Absorption of High-Damping Rubber in a New Bolt for Preventing Rockburst in Deep Hard Rock Mass

Table 2

Filtered results of mass distribution of fragment size.

Serial no.	Accumulated mass under sifter/kg											Fractal dimension
	0.15	0.3	0.6	1.18	2.36	4.75	9.5	13.2	16	19	26.65
GG1 (200 s^−1)	12.7	18	26.9	39.8	51.4	68	93	122.6	147.2	159.8	164	2.50
GG2 (300 s^−1)	16.9	26.9	35.2	45.1	64.2	78.5	115.7	131	143.4	156.3	162.7	2.57
GG3 (400 s^−1)	31.4	42.9	53.2	62.5	78.3	89.5	111.2	129.4	145.1	159.5	163.2	2.69
GR1 (200 s^−1)	0.8	1.7	3	4.5	9.5	15.2	23.3	35.3	45.3	57.2	81.9	2.15
GR2 (300 s^−1)	1.1	2	4	7.3	14.4	24.3	36.4	40.7	52.8	81	82.6	2.17
GR3 (400 s^−1)	2.7	3.5	6.5	11.9	21.2	35	58.3	70.2	78.1	80.7	81.8	2.28