矿岩散体的非均匀度与放出安息角关系的研究

在矿山生产中，无法直接测出矿岩散体的放出安息角。因此，最好是利用容易测量的参数来求出其放出安息角。而散体的放出安息角可用散体的平均粒径和非均匀度来表示。文章阐述了不同粒级散体的平均粒径和散体非均匀度的计算方法，并建立了矿岩散体放出安息角与非均匀度之间的关系方程。

A Study on the Relationship Between the Unhomogeneity and the Drawing-Out Repose Angle of Fragmented Ore/Rock Bulk

In mining production, it is impossible to directly measure the drawing-out repose angle of the fragmented ore/rock bulk.Therefore,the best method is to calculate it from those easily measured parameters. The drawing-out repose angle of the bulk can be described using the averaged size and the unhomogeneity of the bulk. In this paper the calculation methods for the averaged size of various bulks and their unhomogeneity are dealt with,and a correlation equation is established between the repose angle and the unhomogeneity.