金川二矿区地应力特征及其对巷道变形破坏的影响研究
李光,马凤山,郭捷,邹龙,寇永渊

Study on Ground Stress Characteristics and Its Influence on Roadway De-formation Failure in Jinchuan No.2 Mining Area
Guang LI,Fengshan MA,Jie GUO,Long ZOU,Yongyuan KOU
表2 岩石微观力学参数
Table 2 Microscopic mechanical parameters of rock
材料变量参数数值材料变量参数数值
颗粒密度/(kg·m-32500胶结物弹性模量/GPa20
最小半径/mm60刚度比1
粒径比1.67抗拉强度/MPa20
孔隙率0.1黏聚力/MPa20
弹性模量/GPa20摩擦角/(°)25
刚度比2黏结半径系数1.5
摩擦系数0.5