Sensitivity Analysis and Numerical Simulation Study on Main Controlling Factors of Surface Movement and Deformation in Strip Filling Mining under Thick Unconsolidated Layers

Table 2

Simulation scheme.

Factor		Filling rate (%)	Strength of filling body (MPa)	Thickness of key layer (m)	Thickness of loose layer (m)
Scheme
Filling rate	1	51	3.0	70	200
	2	55.5	3.0	70	200
	3	60	3.0	70	200
	4	64.5	3.0	70	200
	5	69	3.0	70	200
Strength of filling body	6	60	2.0	70	200
	7	60	2.5	70	200
	8	60	3.0	70	200
	9	60	3.5	70	200
	10	60	4.0	70	200
Thickness of key layer	11	60	3.0	40	200
	12	60	3.0	55	200
	13	60	3.0	70	200
	14	60	3.0	85	200
	15	60	3.0	100	200
Thickness of loose layer	16	60	3.0	70	160
	17	60	3.0	70	180
	18	60	3.0	70	200
	19	60	3.0	70	220
	20	60	3.0	70	240