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Bulletin of Engineering Geology and the Environment

Published in:

01-05-2024 | Original Paper

Effects of bedding plane properties on mechanical, acoustic emission and micro failure characteristics of bedded rock mass

Authors: Xiaowei Liu, Yaoyao Meng, Hongwen Jing, Wei Liu, Ce Wan, Yanni Cao, Qian Yin

Published in: Bulletin of Engineering Geology and the Environment | Issue 5/2024

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Abstract

To study the effects of bedding plane properties on the mechanical, acoustic emission and micro failure characteristics of bedded rock mass, uniaxial compression tests of bedded rock mass with different bedding plane angles were first conducted. Based on PFC^3D software, the effects of bedding plane strength and roughness on the mechanical and micro failure characteristics of bedded rock mass were then investigated. The laboratory test results showed that when the failure pattern was single crack type dominant, AE counts and AE energy curves belonged to the unimodal distribution. The AE counts and AE energy curves belonged to the multimodal distribution when the failure pattern was mixed failure. Uniaxial compression strength almost increased linearly with the increasing average amplitude. Therefore, acoustic emission characteristic parameters can be used to characterize the mechanical and failure characteristics of bedded rock mass. The numerical simulation results revealed that both bedding plane strength and roughness showed strong influences on uniaxial compression strength, failure pattern and micro cracks’ proportion of bedded rock mass.

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Title: Effects of bedding plane properties on mechanical, acoustic emission and micro failure characteristics of bedded rock mass
Authors: Xiaowei Liu
Yaoyao Meng
Hongwen Jing
Wei Liu
Ce Wan
Yanni Cao
Qian Yin
Publication date: 01-05-2024
Publisher: Springer Berlin Heidelberg
Published in: Bulletin of Engineering Geology and the Environment / Issue 5/2024
Print ISSN: 1435-9529
Electronic ISSN: 1435-9537
DOI: https://doi.org/10.1007/s10064-024-03693-y

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