矿柱爆破回采对胶结充填体损伤影响试验研究
宋春辉,李祥龙,王建国,宋飞

Experimental Study on the Effect of Pillar Blasting Mining on the Damage of Cemented Filling Body
Chunhui SONG,Xianglong LI,Jianguo WANG,Fei SONG
表2 435中段矿体力学参数
Table 2 Mechanical parameters of orebody in the 435 middle section
岩石类型抗压强度/MPa湿抗拉强度/MPa湿剪切强度弹性模量/GPa泊松比
自然含水状态湿抗压强度内聚力/MPa内摩擦角
20线I2矿体72.751.65.18.445°47′86.80.26