钻孔瓦斯动态涌出特征及其与突出危险的关系

通过分析钻孔过程中瓦斯动态涌出的基本特点，提出了利用钻孔瓦斯连续动态涌出量序列数据重建钻孔瓦斯涌出过程动力学特征的相空间模型．在此基础上，应用时序数据分析法，对实测得到的钻孔瓦斯涌出量序列进行计算分析，发现其具有分维特征．最后，对利用分维特征判定和识别突出危险性的问题进行了讨论．

Dynamic Characteristics of Gas Emission During Boring and Its Relation with Gas Outburst Danger

Based on analysis of the basic features of dynamic gas emission during boring, a phase space model for reconstruction of the dynamic characteristics by using the time series of gas emission from boring is put forward. On the basis of the model and by applying time series analysis, it is discovered that the site measurement series of continuously dynamic gas emission possesses fractal property. Finally, the problem about the recognition of gas outburst danger by the above fractal property is discussed.