Research Article
Experimental Research on Material and Mechanical Properties of Rock-Like Filling Materials in Disaster Prevention of Underground Engineering
Table 1
Orthogonal test design table of filling material ratio.
| | Serial number | Factor | Indicator | | A | B | C | Slump D1 (cm) | Time of setting D2 (h) | Stratification D3 (mm) | Bleeding rate D4 (%) | Compressive strength D5 (MPa) |
| | S1 | A (3%) | a (1 : 0.5) | a (74%) | 10.8 | 8.6 | 29.6 | 4.1 | 3.21 | | S2 | a (3%) | b (1 : 1) | b (63%) | 16.2 | 8.1 | 5.5 | 1.5 | 1.01 | | S3 | a (3%) | c (2 : 5) | c (68%) | 6.8 | 7.3 | 2.1 | 0.87 | 1.05 | | S4 | B (9%) | a (1 : 0.5) | c (68%) | 18.5 | 7.2 | 33.2 | 3.4 | 2.56 | | S5 | B (9%) | b (1 : 1) | 1 (74%) | 11.3 | 5.6 | 4.7 | 2.31 | 4.22 | | S6 | B (9%) | c (2 : 5) | b (63%) | 22.6 | 7.1 | 11.8 | 3.5 | 2.87 | | S7 | C (16%) | a (1 : 0.5) | b (63%) | 16.5 | 5.8 | 16.9 | 3.2 | 1.86 | | S8 | c (16%) | b (1 : 1) | c (68%) | 23.4 | 5.4 | 13.9 | 1.58 | 3.45 | | S9 | c (16%) | c(2 : 5) | a(74%) | 18.7 | 6.58 | 3.53 | 3.02 | 3.97 |
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