摘要
声发射技术是分析岩石在发生峰值到软化失稳演化过程的直接工具手段,在国内外理论研究的基础上,对灰岩岩样进行单轴压缩条件下破坏全过程的声发射试验,得出相应的应力、时间与声发射振铃数曲线图,进而分析岩石变形破坏全过程及声发射试验参数的规律。在试验的基础上,利用相关参数确定Kaiser效应点。
Acoustic emission(AE)technology is a direct tool for analyzing the evolution process of rock strength softening and instability.Based on the theoretical research at home and abroad,and the limestone rock samples,the acoustic emission test of the entire process under the uniaxial compression condition is performed,and the corresponding stress,time and acoustic emission ringing curve diagrams are obtained.The whole process of rock deformation and failure and the rules of acoustic emission test parameters are analyzed.Based on the experiments,the Kaiser effect points were determined using the relevant parameters.
作者
闫渊
YAN Yuan(School of Civil Engin.,Architecture&Environment, Hubei Univ.of Tech.,Wuhan 430068,China)
出处
《湖北工业大学学报》
2018年第2期103-107,共5页
Journal of Hubei University of Technology
关键词
单轴试验
声发射
峰值
Uniaxial test
acoustic emission
Peak value
