辽宁工程技术大学学报（自然科学版）2017，Vol.36Issue(9)：903-908,6.DOI:10.11956/j.issn.1008-0562.2017.09.002
基于多重分形理论的工作面煤与瓦斯突出预测
Coal and gas outburst prediction in working face based on multi-fractal theory
摘要
Abstract
In order to accurately predict the coal and gas outburst in working face,this paper studied the time series of gas emission quantity by utilizing the method of multi-fractal.The study drew the double logarithmic curves between the distribution function and classification scale,calculated the multi-fractal parameters of generalized fractal dimension Dq,singular index α,multi-fractal spectrumf(α) and analyzed the variation law of velocity at different time.The results show that the double logarithmic curves between the distribution function and classification scale are straight lines whether q＞0 or q＜0.It shows the multi-fractal characteristics of gas emission quantity time series.In general,changes of the multi-fractal parameters are small but tend to be stable.They are significantly higher than the normal level when the coal and gas outburst occurs in the near time.There is a good correlation between the multi fractal parameters,which can predict the outburst of coal and gas together.关键词
煤与瓦斯突出/瓦斯涌出量/瓦斯预测/多重分形/分形维数Key words
coal and gas outburst/gas emission quantity/gas prediction/multi-fractal/fractal dimension分类
矿业与冶金引用本文复制引用
邓存宝,凡永鹏..基于多重分形理论的工作面煤与瓦斯突出预测[J].辽宁工程技术大学学报（自然科学版）,2017,36(9):903-908,6.基金项目
辽宁省教育厅创新团队项目(LT2012009) （LT2012009）
国家自然科学基金(51174108) （51174108）
