Research Article
Research on Optimization of Mining Substitution in Wangzhuang Mine Based on System Dynamics
Table 1
Key influencing factors of mining system.
| The key factors | Detailed index | Driving system | Coal mining system |
| Geological structure level | Distance of geological structural zone (m) | √ | √ |
| Mine pressure level of underground roadway | Advance support distance of roadway (m) | × | √ | Two-sided displacement (mm) | × | √ |
| Working environment level | Water inflow per unit time at mining face (m3/h) | √ | √ | Roof crushing degree | √ | √ | Roof falling capacity (mm) | √ | √ | Roof subsidence rate (mm/min) | √ | √ | Return air flow gas concentration at the mining face (%) | √ | √ |
| Regular circulation level | Normal circulation rate (%) | √ | √ | Mechanical and electrical equipment failure level | Electromechanical equipment accident rate (%) | √ | √ | Power on level | Operating rate (%) | √ | √ |
|
|