Experiment Study of Outburst Pulverized Coal-Gas Two-Phase Flow and Characteristic Analysis of Outburst Wave

Table 2

The peak pressure value of compression wave at different positions in the roadway.

Gas pressure sensor	Distance from outburst port/m	Peak pressure of compression wave/kPa
		0.5 MPa			0.3 MPa
		p1	0.5	14.595	11.395	3.125	9.99	10.09	5.49
p2	2.5	14.504	10.804	2.904	10.21	9.69	4.983
p3	5.5	11.29	6.32	1.44	9.27	6.81	2.854
p4	7.5	3.512	1.982	0.769	3.22	1.79	0.77