摘要
逐步回归是一种可以有效地挑选重要因素剔除不重要因素,建立科学的符合实际的因变量自变量关系的数学方法。通过运用逐步回归分析方法研究大湾煤矿11煤层多次煤与瓦斯突出事故发生情况,得出了煤层埋深是影响煤与瓦斯突出危险性的关键因素,为合理配置安全投入,对主控因素进行针对性治理提供了科学依据。
Stepwise regression is an effective mathematical method for selecting important factors and elimina- ting unimportant factor by establishing a scientifically consistent and pragmatic relationship between dependent and independent variables. Using stepwise regression analysis method, a study was carried out on the key risk factors for a number of accident cases of coal and gas outburst in Dawan Coal Mine 11 coal seams. It was found that seam depth was the key factor affecting the coal and gas outburst. This analysis provides a scientific basis for the risk management and rational allocation of investment for underground safety.
出处
《矿冶》
CAS
2015年第2期32-34,共3页
Mining And Metallurgy
基金
国家"十二五"科技支撑计划项目(2012BAK04B07)
关键词
突出
危险性
逐步回归
coal and gas outburst
risk
stepwise regression
