Table 2 Error analysis of damage variables for rock samples at different free immersion durations.
From: Investigation of internal damage evolution in gneiss considering water softening
Free immersion durations/months | Number | Measured value | Predicted value | Error rate/% |
---|---|---|---|---|
1 | S-1-1 | 0.132 | 0.145 | 8.76 |
S-1-2 | 0.149 | 2.68 | ||
S-1-3 | 0.158 | 8.23 | ||
3 | S-3-1 | 0.384 | 0.377 | 1.83 |
S-3-2 | 0.398 | 5.28 | ||
S-3-3 | 0.374 | 0.80 | ||
6 | S-6-1 | 0.604 | 0.673 | 10.25 |
S-6-2 | 0.632 | 6.49 | ||
S-6-3 | 0.607 | 9.81 | ||
9 | S-9-1 | 0.914 | 0.908 | 0.66 |
S-9--2 | 0.889 | 2.13 | ||
S-9-3 | 0.933 | 2.68 |