Insights From a Combined Analysis of Acoustic Emission Signals for Water-Bearing Rocks in Four-Point Bending Tests: Failure Mode Classification and Strength Degradation

被引：0
作者：
Jun Zhu
Jianhui Deng
机构：
[1] Institute of Mountain Hazards and Environment,Key Laboratory of Mountain Hazards and Earth Surface Process
[2] Chinese Academy of Sciences (CAS),State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resources and Hydropower
[3] Sichuan University,undefined
来源：
Rock Mechanics and Rock Engineering | 2023年 / 56卷
关键词：
Acoustic emission; Combined analysis; Water bearing; Failure mode classification; Strength degradation; Four-point bending tests;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Water-bearing causes substantial reductions in the tensile strength of rocks under four-point bending.There is an obvious correlation between dominant frequency bands of acoustic emission waveform and failure modes.The water-bearing effect on rock tensile strength can be characterized by the failure components associated with it.Tensile strength degradation of rocks under four-point bending can be attributed to friction weakening and fracture energy reduction.
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页码：3843 / 3855
页数：12
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