地震工程学报2013，Vol.35Issue(1)：114-118,5.DOI:10.3969/j.issn.1000-0844.2013.01.0114
单轴加载下砂岩声发射特征的试验分析
Experimental Analysis of the Acoustic Emission Characteristics of Sandstone Specimens under Uniaxial Loading Tests
摘要
Abstract
Acoustic emission (AE) is a ubiquitous phenomenon associated with deformation and failure of rock material. Experiments on AE characteristics of full-regime sandstone failure are conducted with a stiffness test machine under the condition of uniaxial compression. The relationships of stress characteristics with time-strain level and AE characteristics with time-strain level are obtained in the failure process of sandstone specimens. On the basis these results, the relationship of AE characteristic with strain level is discussed. The approximate critical point of the sandstone specimen is determined to be 0. 9 through the curve fitting method . This study provides theoretical guidance to the monitoring and prediction of sandstone behavior.关键词
砂岩/单轴加载/声发射/临界点Key words
Sandstone/ Uniaxial loading/ Acoustic emission/ Critical point分类
建筑与水利引用本文复制引用
李博,孙强,王思源,蔺宗宗..单轴加载下砂岩声发射特征的试验分析[J].地震工程学报,2013,35(1):114-118,5.
