CAJ | 학술논문

针对掘进工作面瓦斯涌出量时间序列复杂非线性特性,利用 V/S 分析法对其长程趋势特性进行了研究。介绍了经典R/S 分析的基本原理,针对经典 R/S 分析法存在的缺点,给出了V/S分析法基本原理和长程相关特性趋势的分析方法,并指出有效关联长度的计算方法。在MATLAB2009b 环境下实现了算法程序,利用此分析方法对鹤壁十矿1113工作面的瓦斯涌出量时间序列进行分析。结果表明：几组数据的 Hurst 指数值介于0?6301~0?9137,说明工作面瓦斯涌出量时间序列数据具有正相关特性,没有发生突出时正相关特性明显强于突出发生时,且没有发生突出时的有效关联长度值也明显大于发生突出时的有效关联长度。
침대굴진공작면와사용출량시간서렬복잡비선성특성,이용 V/S 분석법대기장정추세특성진행료연구。개소료경전R/S 분석적기본원리,침대경전 R/S 분석법존재적결점,급출료V/S분석법기본원리화장정상관특성추세적분석방법,병지출유효관련장도적계산방법。재MATLAB2009b 배경하실현료산법정서,이용차분석방법대학벽십광1113공작면적와사용출량시간서렬진행분석。결과표명：궤조수거적 Hurst 지수치개우0?6301~0?9137,설명공작면와사용출량시간서렬수거구유정상관특성,몰유발생돌출시정상관특성명현강우돌출발생시,차몰유발생돌출시적유효관련장도치야명현대우발생돌출시적유효관련장도。
As for complex nonlinear characteristics of time series for gas emission rate at driving face,the longGrange trend characteristics were studied by V/S analysis.The basic princiG ple of classical R/S analysis was introduced,and the basic principle of V/S analysis was also proG posed aiming at the disadvantages of classical R/S analysis.Based on these,the trend of long-range correlation characteristics was given and the calculation method of effective correlation length was proposed.The algorithm routine was implemented in MATLAB2009b,which was used for the analysis of time series of gas emission rate at No.1 1 1 3 working face.The final reG sults showed that the Hurst index value of several groups of data is between 0.6301-0.9137,inG dicating that time-series data of gas emission rate at working face were positively correlated. The positively correlated characteristic was prominent and the effective correlated length was greater when no outburst occurred.