A Pocket Assay Grouting Technology for Rock Burst Control under Huge-Thick Conglomerate

Table 3

Results of the L₉ (3³) orthogonal test.

Serial number Si	Indicators Di
	Setting time D1 (h)	Collapse degree D2 cm	Laying-out degree D3 (mm)	Bleeding rate D4 (%)	Compressive strength of backfill D5 (MPa)
S1	8.5	11.5	30.1	3.5	2.23
S2	7.5	18.7	5	1.7	0.97
S3	6.8	7	1	0.94	1.1
S4	6.5	21.3	35	2.7	2.11
S5	6	9	4	1.62	3.38
S6	6.7	20.5	12	2.03	3.07
S7	5.2	19.2	20	2.1	1.97
S8	5	20.1	11	1.76	2.9
S9	5.5	8.3	3	2.03	4.07