进路充填法爆破扰动诱发充填体破坏规律研究
田军,刘建坡,杨勇,张长银

Study on the Failure Law of Backfill Induced by Blasting Disturbance During Cut and Fill Mining Process
Jun TIAN,Jianpo LIU,Yong YANG,Changyin ZHANG
表2 充填体和矿体材料参数
Table 2 Material parameters of orebody and backfill
参数名称充填体参数值(28 d)矿体参数值
密度/(kg·m-31 8002 700
弹性模量/GPa0.6520
泊松比0.220.27
屈服强度/MPa1.515
切线模量/GPa0.0652
抗压强度/MPa1.815
C2.5
P4
硬化指数0.5
失效应变0.8