基于不同岩体稳固级别的地下采场结构参数优化
万串串,陈国良,周高明,于世波,解联库,唐细卓

Optimation of Underground Stope Structure Parameters Based on Different Rockmass Stability Classification
Chuanchuan WAN,Guoliang CHEN,Gaoming ZHOU,Shibo YU,Lianku XIE,Xizhuo TANG
表5 临界水力半径R与可能的采场结构参数计算所得的水力半径R′对比
Table 5 Comparison of critical hydraulic radiusRand hydraulic radiusR′calculated by possible stope structural
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 57.5 45 1.28 12.6220 0
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 57.5 25 2.30 8.7121 0
不稳固 顶板 54.00 1.8478 2.5 1 4.6196 0.45 0.8 1 1.6631 3.6412 57.5 7.5 7.67 3.3173 1
帮壁 54.00 1.8478 2.5 1 4.6196 0.45 0.3 8 4.9892 5.5326 57.5 20 2.88 7.4194 0
帮壁 54.00 1.8478 2.5 1 4.6196 0.45 0.3 8 4.9892 5.5326 57.5 25 2.30 8.7121 0