The acoustic emission regularity and spectrum characteristics of rock under cyclic loading and multi-stage loading during complete failure process were studied.
对循环加载和分级加载条件下岩石损伤破坏全过程的声发射规律和频谱特性进行了研究。
By continuously loading and multi-stage loading, the creep test on Nanyang marble is performed by using the self-developed UCT-1 apparatus of creep test.
利用自行研制的UCT - 1型蠕变试验装置，采用单调连续加载和分级加载方式，对南阳大理岩进行了单轴压缩蠕变试验研究。
The viscoelastic parameter identification and back analysis are carried out by using the multi-stage loading creep curves of granite and schist .
在此基础上，针对花岗岩及片岩两种岩石的室内蠕变分级加载试验曲线进行了流变参数的识别与反演。
During multi-stage loading process, acoustic emission signals increase obviously when the stress increases, and few acoustic emission signals are detected in the low stress stage.
分级加载时，当应力增加时声发射信号明显增多，应力稳定在低水平时基本不产生声发射信号；
During multi-stage loading process, acoustic emission signals increase obviously when the stress increases, and few acoustic emission signals are detected in the low stress stage.
分级加载时，当应力增加时声发射信号明显增多，应力稳定在低水平时基本不产生声发射信号；
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