中文摘要：

岩石标本在下面的机械、声学的排放特征上的异质的影响单轴压缩与数字模拟方法被学习。Weibull 分发功能被采用描述岩石的 mesoscopic 异质。在单轴的装载下面的异构的岩石标本的失败进程用 FLAC3D 软件被模仿。五个计划被采用调查异质的影响。结果作为同质增加，山峰力量和橡皮模量也改进的岩石增加，和宏的易碎物表明那。当同质系数是不到 20.0 时，异质在宏橡皮模量和力量上有大影响。当同质增加时，体积扩大不是那么明显的。当同质系数增加声学的排出物，模式从群吃惊改变到主要吃惊。当同质系数高时，累积声学的排放事件轴的紧张曲线在岩石失败前是轻轻的。数字结果同意以前数字的结果和更早试验性的大小。

英文摘要：

The influence of heterogeneity on mechanical and acoustic emission characteristics of rock specimen under uniaxial compress was studied with numerical simulation methods. Weibull distribution function was adopted to describe the mesoscopic heterogeneity of rocks. The failure process of heterogeneous rock specimen under uniaxial loading was simulated using FLAC^3D software. Five schemes were adopted to investigate the influence of heterogeneity. The results demonstrate that as the homogeneity increases, the peak strength and brittleness of rocks increase, and the macro elastic modulus improves as well. Heterogeneity has great influence on macro elastic modulus and strength when the homogeneity coefficient is less than 20.0. The volume expansion is not so obvious when the homogeneity increases. As the homogeneity coefficient increases the acoustic emissions modes change from swarm shock to main shock. When the homogeneity coefficient is high, the cumulative acoustic emission events axial strain curve is gentle before the rock failure. The numerical results agree with the previously numerical results and earlier experimental measurements.