Study on the Mixed Materials Proportion of Stratum Based on the Modelling Experiment
Table 10
Friction angle of relative error analysis.
Serial number
Proportion of iron and sand in mixture (%)
Quality ratio between iron and sand
Quality ratio between gypsum and lime
Relative error
1
80
2 : 3
2 : 1
1.64
2
80
1.5 : 3.5
1 : 1
1.84
3
80
1 : 4
1 : 2
1.62
4
85
2 : 3
1 : 1
1.42
5
85
1.5 : 3.5
1 : 2
1.47
6
85
1 : 4
2 : 1
1.28
7
90
2 : 3
1 : 2
1.54
8
90
1.5 : 3.5
2 : 1
1.51
9
90
1 : 4
1 : 1
1.59
1.7
1.53
1.48
= 13.92
1.39
1.61
1.62
= 1.55
1.55
1.50
1.54
, the sum of the data for every factor; , the average of the data for every factor; , the average of relative error for factor 1; , the average of relative error for factor 2; , the average of relative error for factor 3.