金川二矿区+1 000 m中段水平矿柱回采方法研究
寇永渊,李光,邹龙,马凤山,郭捷

Study on Mining Method of Horizontal Pillar in the Middle Section of +1 000 m in Jinchuan No.2 Mining Area
Yongyuan KOU,Guang LI,Long ZOU,Fengshan MA,Jie GUO
表1 岩体参数工程设计参考值
Table 1 Engineering design reference value of rock mass parameters
岩性抗压强度σc/MPa抗拉强度σt /MPa黏聚力c/MPa内摩擦角φ/(°)变形模量Em /GPa泊松比μ体积模量Km/GPa剪切模量Gm/GPa
上盘围岩39.191.722.1034.1915.890.258.632.88
下盘围岩33.641.251.1443.5811.600.252.950.97
贫矿24.110.950.8538.453.160.291.030.28
富矿22.240.981.1038.452.990.261.960.62
充填体13.210.500.7636.600.870.320.810.57
断层9.500.090.2435.003.200.252.132.00