Research Article
Geometric Model for Physical Simulation System of Coal and Gas Outburst
Table 2
Caverns’ geometric parameters of small and medium coal and gas outbursts.
| | Location | Coal seam thickness (m) | Coal seam angle (°) | Orifice diameter (m) | Cavern depth (m) | Maximum width (m) | Outburst coal (rock) quality (kg × 103)/type |
| | Main inclined shaft contact lane of Xinjiang Tianfu Electric power (Group) Limited Company Honggou Mine | 2.98 | 40 | 2 | 8 | 5 | 210/medium | | 21202 auxiliary air return coal roadway in Zunyi Coal Mine Buzheng mine | 1.2 | 28 | 2.1 | 7.45 | 3.5 | /small | | +310 m level south tenth cross-cut with 4th coal seam of Lindong Coal Mine | 2.0 | 25 | 2.1 | 6 | 2 | 130/medium | | 3301 haulage gateway driving workface of Panlong Coal Mine | 1.4 | 12 | 1.3 | 9.5 | 6 | 280/medium | | Main drift cross-cut with C5 coal seam of Da Zhuba Coal Mine | 1.6 | 32 | 2.3 | 6.5 | 4.5 | 203/medium | | Main haulage gateway of Ci Wazi Coal Mine | — | 28 | 3.1 | 8 | 4 | 79/small | | 1st district return airway raise roadway of Gushu Coal Mine | 2.29 | 45 | 3.8 | 12 | 8 | 600/big |
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