Energy Distribution Law of Dynamic Failure of Coal-Rock Combined Body

Table 3

The average data of each parameter of the combined body.

Serial number	Compressive strength/MPa	Elastic modulus/MPa	Prepeak energy/KJ	Postpeak energy/KJ	Impact energy index
FCF	12.68	1354.16	0.131	0.015	8.538
GCG	13.04	1259.31	0.167	0.032	5.256
FGF	58.25	2956.57	2.889	0.918	3.148
FCG	13.38	1321.51	0.154	0.024	6.537