中硬覆岩综放开采导水裂隙带发育高度影响因素与预计模型

Influential Factors and Predictive Model of Fully Mechanized Caving Mining in Medium Hardness Overlying Strata Height of Fractured Water-conducting Zone

为研究中硬覆岩综放开采导水裂隙带发育高度,收集了38例实测中硬覆岩综放开采的数据,利用SPSS软件对影响中硬覆岩综放开采导水裂隙带发育高度的影响因素进行逐步回归分析,确定在中硬覆岩综放开采条件下煤矿导水裂隙带发育高度的影响因素按影响程度从大到小依次为开采厚度、工作面斜长和开采深度,并建立了基于观测实例的中硬覆岩综放开采条件下的导水裂隙带计算公式,数据分析表明多因素预计模型具有较高的拟合度。

The 38 observation data are collected for researching fully mechanized caving mining inmedium hardness overlying strata height of fractured water-conducting zone. By using SPSS software,the influential factors are analyzed in regression, those factors are thickness, working face length andmining depth. The calculation model is established by actual observation examples. The data illustratethat the multiple factors predictive model have a high fit degree.