摘要
搭建了矿井突水相似模拟实验系统,研究了矿井突水演化过程中电磁辐射、声发射和表面电位信号变化特征。研究结果表明,矿井突水过程中岩层电磁辐射、声发射和表面电位信号基本呈现初期平稳、中期波动较大、后期快速减小的变化趋势;3种信号均与底板岩层的破裂成正相关关系,可反映矿井突水过程煤岩内部破裂情况;3种信号的快速增大可作为岩层发生破裂的前兆,而电磁辐射信号增大后突然减小可作为突水即将发生的征兆。
A simulation experiment system of mine water inrush was built,and variation characteristics of electromagnetic radiation,acoustic emission and surface electric potential signals were researched during mine water inrushing process.The research results show that variation trend of the three signals is generally described as a stable initial stage,a fluctuant middle stage and a fast-descending ending stage during mine water inrushing process.The three signals has positive correlation with rupture of floor strata,so as to illustrate rupture situation inside coal rock during mine water inrushing process.Fast increasing trend of the these signals can be regarded as a forecast of rock rupture,while sudden drop after a significant rise of the electromagnetic radiation signal can be a harbinger of water inrush.
出处
《工矿自动化》
北大核心
2015年第10期16-19,共4页
Journal Of Mine Automation
基金
国家自然科学基金资助项目(51104156)
"十二五"国家科技支撑计划资助项目(2012BAK04B07)
教育部科学技术研究资助项目(113031A)
江苏省高等学校大学生创新训练计划资助项目(201510290031)
关键词
矿井突水
底板突水
电磁辐射
声发射
表面电位
相似模拟实验
mine water inrush
floor inrush
electromagnetic radiation
acoustic emission
surface electric potential
similar simulation experiment
作者简介
吕岗岗（1991-），男，山西晋城人，硕士研究生，研究方向为煤岩动力灾害防治，E—mail：1249682097@qq．com。
