Study on Synchronous Response Law of Acoustic and Electrical Signals of Outburst Coal Rock under Load and Fracture

Table 2

Actual size of experimental coal and rock sample.

Sample number	Sample type	Diameter (mm)	Height (mm)	Weight (g)	Remarks
M6	Coal	50.8	96.9	269.59	Measurement of synchronous response characteristics of acoustic and electrical signals
M7	Coal	52	95.3	276.04
M8	Coal	50.2	94	263.98
M9	Coal	52.3	99.4	287.04
M10	Coal	52.1	101	285.35
M11	Coal	52	101.2	285.48
Y1	Rock	51.4	100.6	511.41
Y2	Rock	52.7	96.3	510.82
Y3	Rock	50.6	100.5	492.21
Y4	Rock	51.9	102.4	501.23