Orthogonal Experimental Study on Heat Transfer Optimization of Backfill Slurry with Ice Particles

Table 4

Orthogonal experimental results.

Factors
Experiment number	Surrounding rock heat flux A (W/m^2)	Ice-water ratio B	Sand-cement ratio C	Slurry concentration D (%)	Heat-reducing coefficient η (%)
1	111	2 : 5	4 : 1	64	12.02
2	111	5 : 5	6 : 1	68	15.95
3	111	8 : 5	8 : 1	72	16.53
4	333	2 : 5	8 : 1	68	11.46
5	333	5 : 5	4 : 1	72	10.53
6	333	8 : 5	6 : 1	64	12.37
7	555	2 : 5	6 : 1	72	10.28
8	555	5 : 5	8 : 1	64	11.51
9	555	8 : 5	4 : 1	68	10.29