Research Article
Numerical Calculation Analysis of the Structural Stability of Cemented Fill under Different Cement-Sand Ratios and Concentration Conditions
Table 1
Cemented backfill mechanics experiment results.
| Lithology | Compressive strength (MPa) | Tensile strength, σt (MPa) | Bulk modulus, K (GPa) | Elastic modulus, E (GPa) | Poisson’s ratio, | Shear modulus, G (GPa) | Internal friction angle, φ (°) | Cohesion, C (MPa) |
| Lime-to-sand ratio 1 : 6, concentration 68% backfill (program one) | 1.167 | 1.36 | 0.26 | 0.25 | 0.33 | 0.09 | 13.8 | 0.36 | Lime-to-sand ratio 1 : 6, concentration 72% backfill (program two) | 1.576 | 0.17 | 0.29 | 0.37 | 0.29 | 0.14 | 18.0 | 0.51 | Lime-to-sand ratio 1 : 6, concentration 78% backfill (program three) | 2.098 | 0.19 | 0.36 | 0.57 | 0.24 | 0.23 | 20.2 | 0.61 | Lime-to-sand ratio 1 : 8, concentration 68% backfill (program four) | 0.797 | 0.05 | 0.11 | 0.1 | 0.34 | 0.04 | 10.2 | 0.21 | Lime-to-sand ratio 1 : 8, concentration 72% backfill (program five) | 0.941 | 0.07 | 0.14 | 0.16 | 0.31 | 0.06 | 15.2 | 0.38 | Lime-to-sand ratio 1 : 8, concentration 78% backfill (program six) | 1.113 | 0.93 | 0.12 | 0.19 | 0.25 | 0.08 | 18.2 | 0.521 |
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