Research Article
Permeability Prediction of Iron Tailings Including Degree of Compaction and Structure
Table 2
The measured permeability and calculated permeability of undisturbed tailings.
| | Number | n | nsilt | nclay | d20 (μm) | Measured permeability (cm/s) | Calculated permeability (cm/s) | Ratio |
| | 1-1 | 0.3641 | 0.6820 | — | 58.73 | 3.21 × 10−4 | 2.08 × 10−4 | 0.65 | | 1-2 | 0.3955 | 0.7598 | — | 74.17 | 3.47 × 10−4 | 4.14 × 10−4 | 1.19 | | 1-3 | 0.4076 | 0.7107 | — | 59.73 | 3.21 × 10−4 | 3.24 × 10−4 | 1.01 | | 1-4 | 0.4056 | 0.7614 | — | 72.17 | 3.17 × 10−4 | 4.33 × 10−4 | 1.37 | | 1-5 | 0.4051 | 0.6438 | 0.9569 | 47.36 | 2.58 × 10−4 | 2.88 × 10−4 | 1.12 | | 1-6 | 0.3980 | 0.6984 | — | 59.73 | 3.28 × 10−4 | 3.00 × 10−4 | 0.92 | | 1-7 | 0.4146 | 0.4703 | 0.9158 | 15.66 | 1.21 × 10−5 | 8.66 × 10−6 | 0.71 | | 1-8 | 0.2990 | 0.4499 | 0.7234 | 7.91 | 3.26 × 10−5 | 3.45 × 10−5 | 1.06 | | 1-9 | 0.3237 | 0.4822 | 0.7656 | 10.15 | 5.58 × 10−5 | 6.81 × 10−5 | 1.22 | | 1-10 | 0.3606 | 0.5010 | 0.7862 | 9.2 | 2.29 × 10−5 | 6.13 × 10−5 | 2.68 | | 1-11 | 0.3914 | 0.6153 | 0.8728 | 22.9 | 2.40 × 10−5 | 1.19 × 10−5 | 0.49 | | 1-12 | 0.3566 | 0.4972 | 0.7520 | 5.71 | 2.27 × 10−5 | 2.14 × 10−5 | 0.94 |
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Ratio = calculated permeability ÷ measured permeability.
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