科卡金矿边坡岩石力学试验

Rock Mechanics Test for Open-pit Slope in Koka Gold Mine

通过岩石单轴压缩试验,获得岩石的基本力学性质指标,分析岩石的破坏形式,利用声发射装置探讨岩石试件在压缩过程中内部能量的变化及破坏过程。结果显示,边坡岩石属于硬质岩,在外荷载达到抗压强度时,瞬间发生破坏,破坏后岩石呈碎块状,表明该岩石破坏类型为脆性破坏。

The basic mechanical properties for slope rock are obtained by laboratory uniaxial compressive test,and the rock failure mode is analysized,and the inner energy changes and failure process during the compression are researched by acoustic emission test. The results show that the slope rock is classified to hard rock, the failure instantaneously occurrs when the load reaches to the compressive strength,the rock is brittlely broken to fragment.