Acoustic emission features and P-wave first-motion polarity of tensile fractures in the rock

Acoustic emission features and P-wave first-motion polarity of tensile fractures in the rock

To investigate the acoustic emission (AE) characteristics of tensile fracture in the rock, an AE experiment of granite, marble, and red sandstone using an expanding agent for fracture generation was designed. Characteristic parameters of AE signals and the P-wave first-motion polarity were analyzed...

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Bibliographic Details
Main Authors: Xi-ling LIU, Qing-lin LIU, Kun DU, Xi-bing LI, Qin XIE
Format: Article
Language:zho
Published: Science Press 2022-08-01
Series:工程科学学报
Subjects:
expanding agent
acoustic emission
centroid frequency
ra−af distribution
p-wave first-motion polarity
Online Access:http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2021.01.16.005

Internet

http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2021.01.16.005

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