基于不同岩体稳固级别的地下采场结构参数优化
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万串串,陈国良,周高明,于世波,解联库,唐细卓
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Optimation of Underground Stope Structure Parameters Based on Different Rockmass Stability Classification
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Chuanchuan WAN,Guoliang CHEN,Gaoming ZHOU,Shibo YU,Lianku XIE,Xizhuo TANG
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表6 临界水力半径R与可能的采场结构参数计算R′对比(修正后)
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Table 6 Comparison of critical hydraulic radiusRand hydraulic radiusR′calculated by possible stope structural
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| 岩体稳固类型 | RMR | Q | SRF | J w | Q? | A | B | C | 稳定值N | 临界水力半径R | 长/m | 宽（高）/m | 长/宽（高） | R? | R R?？ | | 稳固 （单分段） | 顶板 | 64.00 | 8.5770 | 2.5 | 1 | 21.4424 | 0.45 | 0.8 | 1 | 7.7193 | 6.5330 | 57.5 | 15 | 3.83 | 5.9483 | 1 | | 帮壁 | 64.00 | 8.5770 | 2.5 | 1 | 21.4424 | 0.45 | 0.3 | 8 | 23.1578 | 9.9264 | 57.5 | 20 | 2.88 | 7.4194 | 1 | | 帮壁 | 64.00 | 8.5770 | 2.5 | 1 | 21.4424 | 0.45 | 0.3 | 8 | 23.1578 | 9.9264 | 57.5 | 25 | 2.30 | 8.7121 | 1 | | 稳固 （双分段） | 顶板 | 64.00 | 8.5770 | 2.5 | 1 | 21.4424 | 0.45 | 0.8 | 1 | 7.7193 | 6.5330 | 57.5 | 15 | 3.83 | 5.9483 | 1 | | 帮壁 | 64.00 | 8.5770 | 2.5 | 1 | 21.4424 | 0.45 | 0.3 | 8 | 23.1578 | 9.9264 | 28.75 | 45 | 1.57 | 8.7712 | 1 | | 中等稳固 | 顶板 | 60.00 | 4.6416 | 2.5 | 1 | 11.6040 | 0.45 | 0.8 | 1 | 4.1774 | 5.1709 | 57.5 | 12 | 4.79 | 4.9640 | 1 | | 帮壁 | 60.00 | 4.6416 | 2.5 | 1 | 11.6040 | 0.45 | 0.3 | 8 | 12.5323 | 7.8569 | 57.5 | 20 | 2.88 | 7.4194 | 1 | | 帮壁 | 60.00 | 4.6416 | 2.5 | 1 | 11.6040 | 0.45 | 0.3 | 8 | 12.5323 | 7.8569 | 28.75 | 25 | 1.15 | 6.6860 | 1 | | 不稳固 | 顶板 | 54.00 | 1.8478 | 2.5 | 1 | 4.6196 | 0.45 | 0.8 | 1 | 1.6631 | 3.6412 | 20 | 7.5 | 2.67 | 2.7273 | 1 | | 帮壁 | 54.00 | 1.8478 | 2.5 | 1 | 4.6196 | 0.45 | 0.3 | 8 | 4.9892 | 5.5326 | 20 | 20 | 1.00 | 5.0000 | 1 | | 帮壁 | 54.00 | 1.8478 | 2.5 | 1 | 4.6196 | 0.45 | 0.3 | 8 | 4.9892 | 5.5326 | 20 | 25 | 1.25 | 5.5556 | 0 |
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