A Fluid-Solid Coupling Mathematical Model of Methane Driven by Water in Porous Coal

Table 3

Space-time distribution of the pore pressure at the axial monitoring points.

Time (min)	Monitoring point (mm)
	10	20	30	40	50	60	70	80	90
	Pore pressure (MPa)	Pore pressure (MPa)	Pore pressure (MPa)	Pore pressure (MPa)	Pore pressure (MPa)	Pore pressure (MPa)	Pore pressure (MPa)	Pore pressure (MPa)	Pore pressure (MPa)
0	0.500	0.500	0.500	0.500	0.500	0.500	0.500	0.500	0.500
5	0.648	0.604	0.569	0.542	0.519	0.493	0.462	0.413	0.325
10	0.656	0.617	0.582	0.548	0.517	0.483	0.441	0.383	0.294
15	0.656	0.616	0.578	0.543	0.509	0.474	0.430	0.371	0.284
20	0.654	0.613	0.575	0.539	0.504	0.468	0.424	0.365	0.278