煤田地质与勘探2016，Vol.44Issue(4)：35-39,5.DOI:10.3969/j.issn.1001-1986.2016.04.007
基于层理影响的煤样加载过程声发射差异性分析
The analysis of the differences of acoustic emission during loading process based on the influence of bedding
摘要
Abstract
In order to explore the effect of bedding on characteristics of acoustic emission during coal mining, the coal samples were collected in Sihe coal mine. The coal samples were made along the axial direction of the vertical strati-fication and parallel bedding direction, according to the requirements of making the coal samples. With RMT-150B rock mechanics test system and CDAE-1 all-digital acoustic emission detection and analysis system, the samples were tested for stress-strain-acoustic emission during loading. The test results showed that the coal samples of axial vertical stratification had high rock mechanics strength and acoustic emission intensity. The acoustic emission features were strong respectively and hysteresis quality. The difference of acoustic emission characteristics in the loading process reflected that the axial vertical stratification of coal samples were given priority to the overall deformation and de-struction. The axial parallel bedding coal samples were given priority to local deformation and destruction. This pro-vides guidance for monitoring and forecasting of coal mine dynamic disaster.关键词
岩石力学/层理/声发射/实验Key words
rock mechanics/bedding/acoustic emission/experiment分类
矿业与冶金引用本文复制引用
贾炳,魏建平,温志辉,贾林兴..基于层理影响的煤样加载过程声发射差异性分析[J].煤田地质与勘探,2016,44(4):35-39,5.基金项目
国家自然科学基金项目(51574112，51404100)；教育部科学技术研究重点项目(213022A) @@@@National Natural Science Foundation of China(51574112，51404100)；Foundation for Key Program of Education Ministry of China(213022A) （51574112，51404100）
