金川矿区深部巷道支护效果评价及参数优化研究
李光,马凤山,刘港,郭捷,郭慧高,寇永渊

Study on Supporting Parametric Optimizing Design and Evaluate Supporting Effect of Deep Roadway in Jinchuan Mine
Guang LI,Fengshan MA,Gang LIU,Jie GUO,Huigao GUO,Yongyuan KOU
表2 试验段地应力实测值
Table 2 Ground stress in the test section
应力类型 应力量值/MPa 应力方向/(°) 应力倾角/(°)
最大主应力(σ 1) 44.4 232 5
中间主应力(σ 2) 31.8 -62.2 -79
最小主应力(σ 3) 24.2 142 -10