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煤与瓦斯突出电磁辐射多重分形特征
Electromagnetic emission multi-fractal characteristic of coal and gas outburst
【摘要】 利用固定质量法对煤岩电磁辐射多重分形维数进行了计算,电磁辐射强度序列具有多重分形的特征。电磁辐射多重分形 Dq-q曲线的陡峭程度反映了其数据的波动程度,并用分形维数 ?Dq指标来表达这种波动规律。通过对现场测试的煤岩电磁辐射序列的分析,其多重分形维数指标与煤与瓦斯突出灾害危险程度有较好的一致性,为电磁辐射预测预报煤与瓦斯突出提供了一种分析手段。
【Abstract】 The EME multi-fractal dimension of coal or rock is calculated using fixed-mass method, and the multi-fractal characteristic of EME series is verified. The steep degree of multi-fractal dimension Dq-q curve of EME can reflect the varying degree of EME series which is expressed by means of ?Dq. Based on the analysis of in-situ EME series, the better consistency between the index of EME multi-fractal dimension and the criticality of coal and gas outburst is gotten, and an advanced technology for coal and gas outburst forecast is given.
【Key words】 coal and gas outburst; electromagnetic emission; multi-fractal characteristic;
- 【文献出处】 辽宁工程技术大学学报 ,Journal of Liaoning Technical University , 编辑部邮箱 ,2005年01期
- 【分类号】TD712.53
- 【被引频次】20
- 【下载频次】383