Research Article
Quantitative Characterization of Overburden Rock Development Pattern in the Goaf at Different Key Stratum Locations Based on DEM
Table 3
Prototype and comparison of similar model parameters.
| | Layer number | Lithology | Actual thickness/m | Actual volume weight/kN/m3 | Model thickness/cm | Volume weight of model thickness/g/cm3 | Model total thickness/cm |
| | J17 | Mudstone | 5.3 | 24.0 | 3.5 | 1.4 | 88.1 | | J16 | Sandstone | 11.4 | 23.8 | 7.6 | 1.6 | 84.6 | | J15 | Mudstone | 4.5 | 24.0 | 3.0 | 1.4 | 77.0 | | J14 | Sandstone | 6.8 | 23.8 | 4.5 | 1.6 | 74.0 | | J13 | Fine sandstone | 5.6 | 23.3 | 3.7 | 1.6 | 69.5 | | J12 | Medium grain sandstone | 3.0 | 25.2 | 2.0 | 1.6 | 65.8 | | J11 | Mudstone | 5.1 | 24.0 | 3.4 | 1.4 | 63.8 | | J10 | Sandy mudstone | 15.2 | 24.3 | 10.1 | 1.6 | 60.4 | | J9 | Mudstone | 11.1 | 24.0 | 7.4 | 1.4 | 50.3 | | J8 | Post office box stone | 4.2 | 23.3 | 2.8 | 1.5 | 42.9 | | J7 | Mudstone | 5.8 | 24.0 | 3.8 | 1.4 | 40.1 | | J6 | Medium grain sandstone | 7.2 | 25.2 | 4.8 | 1.6 | 36.3 | | J5 | Sandy mudstone | 5.0 | 24.3 | 3.3 | 1.6 | 31.5 | | J4 | Medium grain sandstone | 6.7 | 25.2 | 4.4 | 1.6 | 28.2 | | J3 | Sandy mudstone | 3.0 | 24.3 | 2.0 | 1.6 | 23.7 | | J2 | Coal seam | 6.0 | 20.8 | 4.0 | 1.4 | 21.7 | | J1 | Post office box stone | 26.6 | 22.3 | 17.7 | 1.5 | 17.7 |
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