Research and Analysis on Rock Acoustic Emission Wave Characteristics

Jian Ping He

doi:10.4028/www.scientific.net/AMM.638-640.534

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 638-640Research and Analysis on Rock Acoustic Emission...

Research and Analysis on Rock Acoustic Emission Wave Characteristics

Abstract:

Analyzing wave behavior on acoustic emission laboratory tests from relationship between stress and AE rate , the rock AE signal wave in laboratory is decomposed into high and low frequency elements. Analysis and compare with the details elements include, the approximation elements and original AE wave, the results show that rock AE wave characteristics are not same in the course of transform fracture on stages, found AE wave characteristics storehouse, it is a matter of great significance for utilizing monitoring and prediction regularity and development trend in the course of fracture transform. The error between the original signal and the signal of wave coefficient of the approximation elements reconstructed is minor to, wavelet analysis makes accuracy and reliability of rock AE wave characteristics monitoring and prediction improved, States that wavelet analysis is a great efficiency method.

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Periodical:

Applied Mechanics and Materials (Volumes 638-640)

Pages:

534-537

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.638-640.534

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Online since:

September 2014

Authors:

Jian Ping He*

Keywords:

AE, Rock Mass, Wave Characteristics

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