测试混凝土断裂时的声发射事件数；
The relationship between fracture properties of concrete and AE hits was analyzed.
缺口深度越大，声发射活动性越小，声发射事件振幅较小。
The deeper the notch was, the lower the activity of acoustic emission was, and the smaller the amplitudes of acoustic emission events became.
在加载和加卸载试验中，岩石峰后破坏过程中都产生大量的声发射事件。
Rock samples show a large amount of AE events in the post-peak region for both loading and loading-unloading processes.
而在峰值载荷附近，声发射事件数快速增长且开始有大量高振幅声发射信号出现。
As the load reached the peak, a large number of AE hits occurred and its amplitude was high.
岩石在接近峰值强度时单位时间内的应力增长速度减小、声发射事件率出现明显下降。
At the time when the rock strength approached to the peak value, the increasing velocity of stress in unit time reduced and the rate of acoustic emission event decreased obviously.
声发射事件率在不同应力水平变化很大，峰值强度后的声发射现象仍然明显，其声发射特征随岩样破坏形式的不同而不同。
The AE rates change dramatically in different stages. In post-peak region, AE events stay evident and the AE characteristics depend on the failure type of rocks.
数值模拟结果演示两种条件下由微破裂诱致宏观破坏的演化过程以及和微破裂相关的声发射事件源的空间分布特征和事件序列特征。
The simulated results reflect macroscopic failure evolution process induced by microscopic fracture and the spatial and temporal distribution characteristics of acoustic emissions event hypocenter.
通过分析加载过程中声发射定位事件、CT扫描切片以及CT数的变化，获取多裂纹岩石裂纹扩展破坏过程。
By analyzing the positions of acoustic emission events, the CT slides and the change of CT number, the cracking propagation process is achieved.
岩体声发射的频度、强弱及高能事件与岩体的破坏过程密切相关。
The frequency, strength and energy of acoustic emission are concerned with rock mass fracturing.
岩体声发射的频度、强弱及高能事件与岩体的破坏过程密切相关。
The frequency, strength and energy of acoustic emission are concerned with rock mass fracturing.
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