Research Article
Analysis of the Control Effect and Parameter Optimisation of Urban Surface Deformation in Underground Coal Mining with Solid Backfilling
Table 3
Comparison of surface deformation parameters between infill mining and collapse mining.
| | Mining method | Working face | Maximum subsidence (mm) | Maximum tilt deformation (mm/m) | Maximum curvature deformation (mm/m2) | Maximum horizontal deformation value (mm) | Maximum horizontal deformation (mm/m) |
| | Backfill method | T3292 | 66 | 0.76 | 0.064 | 50.6 | 1.53 | | F5001 | 31 | 1.65 | 0.094 | 16.1 | 1.25 | | F5002 | 25 | 0.29 | 0.012 | 7.84 | 0.81 |
| | Caving method | F5009 | 210 | 6.65 | 0.59 | 168.1 | 4.25 |
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