数学拟合方法在掘进工作面粉尘浓度研究中的应用

煤矿粉尘严重影响井下工人的身体健康,对粉尘浓度分布的研究,是防止粉尘危害的基础.根据掘进工作面不同地点实测的呼吸性粉尘和全尘浓度值,基于最小二乘的思想建立数学模型,并结合Matlab软件,运用线性、多项式、指数、反比例函数四种曲线拟合的方法对掘进工作面不同地点的两种粉尘浓度分布分别进行拟合,得到粉尘浓度和掘进面距离之间的函数关系.通过计算各种拟合曲线的均方误差,找到最佳的拟合方案,为井下的防尘工作提供可靠的依据,达到更好的防尘效果.

Mathematical Fitting Method Applied in Dust Concentration Research in Tunneling Face

The coal dust influence worker's health seriously.The research of dust concentration distribution is to prevent the dust harm.According to the measured respirable dust and total dust concentration values in different locations of tunneling face,building mathematical model based on the ideal of least square,combining with the Matlab software,using linear,polynomial,exponential and inverse function curve fitting method to fit the dust concentration distribution of tunneling face in different locations,getting the function relation between the distance of tunneling face and the dust concentration.At last,finding the best fitting solution by calculating the mean square error of the fitted curve is to provide reliable basis for preventing the dust and to achieve better effects.