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

图5 水平矿柱回采过程中+1 000 m水平面主应力变化曲线

Fig.5 Variation curves of principal stress in +1 000 m horizontal plane during horizontal pillar mining