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含瓦斯煤岩突出流变分析及非接触预测技术

发表时间:2008-02-28  浏览量:2188  下载量:681
全部作者: 王云刚,魏建平,刘明举
作者单位: 河南理工大学安全科学与工程学院
摘 要: 根据材料破坏的时间效应分析了煤岩流变破坏过程,特别是煤岩体的蠕变破坏过程,从理论上提出了控制煤岩灾害性蠕变破坏的方法。从能量转化的角度和流变假说,分析了含瓦斯煤岩体流变耗能过程和突出过程中的能量关系,得出电磁辐射综合反映了含瓦斯煤岩体的应力状态,瓦斯压力的大小和含瓦斯煤体突出的危险程度。讨论了非平衡态瓦斯在突出过程中对电磁辐射的影响。应用突出的电磁辐射技术对淮南两矿进行了测试,得到的结果与实际情况一致。
关 键 词: 安全技术及工程;安全监测技术;时间效应;含瓦斯煤岩流变;蠕变特性;电磁辐射
Title: Rheological analysis of coal and gas outburst and its noncontact prediction technology
Author: WANG Yungang, WEI Jianping, LIU Mingju
Organization: School of Safety Science and Engineering, HPU
Abstract: According to the time effect of material failure, the rheologic damage process of coal or rock, especially its creep characteristics, is analyzed. The method of controlling the catastrophic creep failure is proposed abstractly. Based on the transformation of energy and rheological explanation of outburst phenomena, the relationship between the rheological energy dissipation process of coal or rock containing gas and the energy transformation is analyzed. The amplitude and pulse number of electromagnetic emission(EME) reflect comprehensively the danger of coal outburst before working faces. The effect of non-equilibrium gas on EME is discussed in the gas outburst process. Eventually, the EME monitor gets satisfied results in application.
Key words: safety technology and engineering; safety monitoring technology; time effect; coal or rock containing gas rheology; creep characteristics; EME
发表期数: 2008年6月第4期
引用格式: 王云刚,魏建平,刘明举. 含瓦斯煤岩突出流变分析及非接触预测技术[J]. 中国科技论文在线精品论文,2008,1(4):378-383.
 
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