Numerical Simulation and Field Measurement Analysis of Fracture Evolution and Seepage Response of Key Aquiclude Strata in Backfill Mining

Table 2

Numerical simulation schemes and parameters.

Scheme no.	Lithology and parameters of KAS	Backfilling ratio, %	Interlayer rock thickness, m
1	Mudstone 18 m	65	20
	Fine sandstone 16 m
	Mudstone 9 m, fine sandstone 9 m
	Mudstone 5 m, siltstone 5 m, mudstone 5 m, fine sandstone 5 m
2	Mudstone 5.8 m, siltstone 1.3 m, fine sandstone 5.4 m	65	15
	Mudstone 10.5 m, siltstone 4.4 m, fine sandstone 7.6 m		25
	Mudstone 15.2 m, siltstone 7.5 m, fine sandstone 9.8 m		35
3	Mudstone 8.8 m, siltstone 3.4 m, fine sandstone 7.1 m	45	21.8
	Mudstone 8.8 m, siltstone 3.4 m, fine sandstone 7.1 m	65
	Mudstone 8.8 m, siltstone 3.4 m, fine sandstone 7.1 m	80