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煤岩冲击破坏模型及声电前兆判据研究
引用本文:窦林名,何学秋.煤岩冲击破坏模型及声电前兆判据研究[J].中国矿业大学学报,2004,33(5):504-508.
作者姓名:窦林名  何学秋
作者单位:中国矿业大学,能源与安全工程学院,江苏,徐州,221008
基金项目:国家自然科学基金项目(50074030),国家自然科学基金重点项目(50134040),教育部博士点基金项目(20030290017)
摘    要:根据煤岩体变形破坏特征及其破坏过程中的声电效应规律分析,提出了煤岩冲击破坏的弹塑脆性模型,描述了煤岩材料受载变形的稳定破坏和冲击破坏、冲击矿压发生的突发性和延时性、变形破坏过程中的声发射和电磁辐射现象以及Kaiser效应,给出了冲击矿压危险前兆预测的声电判据.结果表明,采用声电前兆判据,可对冲击矿压危险性进行判别和预测。

关 键 词:煤岩  弹塑脆性模型  冲击矿压  声发射  电磁辐射
文章编号:1000-1964(2004)05-0504-05
修稿时间:2003年6月2日

Model for Rock Burst Failure and Its Critical Values of Acoustic and Electromagnetic Emission
DOU Lin-ming,HE Xue-qiu.Model for Rock Burst Failure and Its Critical Values of Acoustic and Electromagnetic Emission[J].Journal of China University of Mining & Technology,2004,33(5):504-508.
Authors:DOU Lin-ming  HE Xue-qiu
Abstract:Based on the characteristics of coal rook burst failure and the analysis of acoustic and electromagnetic emission the elastic-plastic-brittle model of rock burst failure was presented. By means of this model the rock failure and burst, sudden and delay rock burst, the acoustic emission (AE), electromagnetic emission(EME) as well as Kaiser effect were described, and acoustic and electromagnetic critical values of rock burst danger were obtained. The results indicate that the danger of rock burst can be forecasted by monitoring acoustic and electromagnetic emission in the coal face.
Keywords:coal rock  elastic-plastic-brittle model  rock burst  AE  EME  forecasting
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