Analytical Solution for the Deformation and Support Parameters of Coal Roadway in Layered Roof Strata

Table 1

Rock properties of the roadway roof strata.

Rock strata	Lithology	Depth (m)	Thickness (m)
The 8th roof stratum	Siltstone	601.32	1.89
The 7th roof stratum	Medium sandstone	605.02	3.70
The 6th roof stratum	Fine sandstone	606.27	1.25
The 5th roof stratum	Siltstone	607.82	1.55
The 4th roof stratum	Fine sandstone	609.72	1.90
The 3rd roof stratum	Medium sandstone	612.02	2.30
The 2nd roof stratum	Fine sandstone	614.47	2.45
The 1st roof stratum	Sandy mudstone	615.29	0.82
3# coal	Coal	621.80	6.51