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[1]涂 力,张电吉*,潘 登,等.磷块岩三轴压缩破坏特性与声发射规律的研究[J].武汉工程大学学报,2017,39(06):616-621.[doi:3969/j. issn. 1674?2869. 2017. 06. 016]
 TU Li,ZHANG Dianji*,PAN Deng,et al.Failure Characteristics and Laws of Acoustic Emission for Phosphorite Under Triaxial Loading[J].Journal of Wuhan Institute of Technology,2017,39(06):616-621.[doi:3969/j. issn. 1674?2869. 2017. 06. 016]
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磷块岩三轴压缩破坏特性与声发射规律的研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
39
期数:
2017年06期
页码:
616-621
栏目:
化学与化学工程
出版日期:
2017-12-30

文章信息/Info

Title:
Failure Characteristics and Laws of Acoustic Emission for Phosphorite Under Triaxial Loading
文章编号:
20170616
作者:
涂 力1张电吉1*潘 登1吝曼卿1邓天赐1杨丹丹1韩瑞庭1姚金蕊2何忠国2
1. 武汉工程大学资源与土木工程学院,湖北 武汉 430074;2. 贵州开磷有限责任公司,贵州 贵阳 550000
Author(s):
TU Li1 ZHANG Dianji1* PAN Deng1L IN Manqing1 DENG Tianci1YANG Dandan1HAN Ruiting1YAO Jinrui2 HE Zhongguo2
1. School of Resource and Civil Engineering, Wuhan Institute of Technology,Wuhan 430074, China;2. Guizhou Kailin Co., LTD,Guiyang 550000, China
关键词:
磷块岩 三轴压缩试验 声发射 裂纹 破坏特性
Keywords:
phosphorite triaxial loading test acoustic emission crack failure characteristics
分类号:
TU452
DOI:
3969/j. issn. 1674?2869. 2017. 06. 016
文献标志码:
A
摘要:
采用应力加载系统和声发射测试系统,研究了三轴压缩试验中磷块岩裂纹破坏特性及声发射活动规律. 试验及分析研究表明:磷块岩三轴声发射加载全过程可分为裂隙压密阶段、弹性压缩阶段、裂纹初级扩展阶段、裂纹剧烈扩展阶段、宏观破坏阶段;磷块岩声发射事件在其强度最大阶段和宏观破坏阶段均有产生;磷块岩声发射事件数随着围压从2 MPa增加到4 MPa而减少.
Abstract:
Failure characteristics of crack and laws of acoustic emission activity of phosphorite were investigated by the strain loading system and the acoustic emission testing system. The experimental results show that the process of acoustic emission for phosphorite under triaxial loading includes five stages, the fissure compaction, the elastic compression, the primary crack propagation, the dramatical crack propagation, and the macroscopic failure. Acoustic emission events hexisted at the maximum intensity and the macroscopic failure of phosphorite. The acoustic emission events decrease with the confining pressure of phosphorite increasing from 2 MPa to 4 MPa.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-07-04 基金项目:国家自然科学基金(51474159,51504167);武汉工程大学研究生教育创新基金(CX2016046)作者简介:涂 力,硕士研究生. E-mail:[email protected] *通讯作者:张电吉,博士,教授. E-mail:[email protected]引文格式:涂力,张电吉,潘登,等. 磷块岩三轴压缩破坏特性与声发射规律的研究[J]. 武汉工程大学学报,2017,39(6):616-621. TU L,ZHANG D J,PAN D,et al. Experimental studies of failure characteristics and laws of acoustic emission for phosphorite under triaxial loading[J]. Journal of Wuhan Institute of Technology,2017,39(6):616-621.
更新日期/Last Update: 2018-01-04