The Influence of Fracture Strain Energy on the Burst Tendency of Coal Seams and Field Application

Table 1

Strain energy of coal samples from coal mine A.

Specimen						Classification of strain energy (part)
	MJ/m^3
B1	0.0197	0.0128	0.0069	0.0037	0.0091
B2	0.0147	0.0101	0.0046	0.0032	0.0069
B3	0.0186	0.0108	0.0078	0.0042	0.0066
B4	0.0149	0.0092	0.0057	0.0029	0.0064
B5	0.0148	0.0098	0.0050	0.0027	0.0071
Avg	0.0165	0.0105	0.0060	0.0033	0.0072
Ratio	100	63.71	36.29	20.14	43.57

Note. The ratio refers to the ratio of different strain energy to input energy, namely, .