The Character of Evolution of Rock Fracture Processes from Observations of Acoustic Emission and Time Variations in Radon Volumetric Activity

被引：5
|
作者：
Belikov, V. T. [1 ]
Kozlova, I. A. [1 ]
Ryvkin, D. G. [1 ]
Yurkov, A. K. [1 ]
机构：
[1] Russian Acad Sci, Bulashevich Inst Geophys, Ural Branch, Ekaterinburg 620016, Russia
来源：
IZVESTIYA-PHYSICS OF THE SOLID EARTH | 2020年 / 56卷 / 03期
关键词：
acoustic emission; amplitude-frequency spectra; STRUCTURAL CHARACTERISTICS; FAILURE; MASSIF;
D O I：
10.1134/S1069351320030027
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Laboratory experiments on monitoring the acoustic emission signals and time variations of volumetric activity of radon during uniaxial loading of a granite sample up to its fracture have been carried out. Based on the results of the experiments, the amplitude-frequency spectra of acoustic emission are constructed for four successive time instants. Based on the quantitative interpretation of the data, the time variations in the structural parameters of the rock, the pattern of evolution of the fracture process, and the regularities in the changes of separate stages of this process are studied.
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页码：425 / 436
页数：12
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