煤体瓦斯非稳态流动表面电位实验研究及机理探讨  

Experimental Study and Mechanism Analysis of Coal Surface Potential in Unsteady Flowing Gas

作　　者：谢绍东[1] 王恩元[1] 李忠辉[1] 许福乐[1] 郭金栋[1] 魏明尧[1] 

机构地区：[1]中国矿业大学安全工程学院,江苏徐州221008

出　　处：《煤矿安全》2011年第1期1-4,共4页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(40874070);国家自然科学青年基金资助项目(40904028);国际科技合作资助项目(2008DFB70100);国家"十一五"科技支撑计划项目(2007BAK29B01);国家"973计划"资助项目(2005cb221505)

摘　　要：为了进一步研究煤与瓦斯突出过程中电磁辐射的产生机理。采用实验室实验与理论分析相结合的方法,对不同压力瓦斯气体充放过程中煤体产生的表面电位进行研究,对比分析了不同通道间的表面电位规律;并结合摩擦起电、流动电势和压电效应等理论,分析了实验条件下表面电位产生机理。In order to further study the mechanism of electromagnetic radiation in the process of coal and gas outburst.The surface potential is studied in different gas pressure during charge and discharge progress and compared in different channels through the method of laboratory experiments and theoretical analysis;the mechanism of surface potential under laboratory conditions is analyzed combining with the theory of electricity produced by friction,steaming potential and piezoelectric effect,etc.

关 键 词：煤 瓦斯 非稳态流动 表面电位 

分 类 号：TD713[矿业工程—矿井通风与安全]