综采工作面底板破坏深度研究

Study on the depth of damaged floor of fully mechanized working face

针对底板破坏深度原有经验公式的不足之处,通过生产实践和查阅相关资料,综合分析了煤层埋深、工作面采高、煤层倾角和工作面长度4个主要因素对底板破坏深度的影响,并利用多元回归分析的方法得到回归方程,通过对比经验公式、回归方程所得结果与实测数据的误差,认为本文所得的回归方程准确性更高,在生产实践中更加具有实用价值。

Aimed at the shortcoming of existing empirical formula floor damage depth, through the production practice and access to relevant data, comprehensive analysis of the coal seam buried depth, mining height, dip angle of coal seam and the working face length, the four main factors influence on floor damage depth, and regression equation are obtained by multiple regression analysis method, by comparing the results of our empirical formula, the regression equation and the error of the measured data, think that the accuracy is higher, the regression equation obtained in this paper has more practical value in production practice.