基于FDEM的岩石颗粒破碎后碎片形状的统计分析

周剑,马刚,周伟,程勇刚,黄泉水,曹学兴

Statistical analysis of fragment shape of rock grain after crushing based on FDEM

Jian ZHOU,Gang MA,Wei ZHOU,Yong-gang CHENG,Quan-shui HUANG,Xue-xing CAO

表 1 棱角状花岗岩颗粒的形状指标

Tab.1 Shape descriptors of angular granite grains

颗粒编号 $L$/mm $I$/mm $S$/mm ${\rm{EI}}$ ${\rm{FI}}$ ${S_{\rm{f}}}$ ${\psi _{{\rm{3D}}}}$ ${C_{\rm{x}}}$ G1 64.725 55.034 35.883 0.850 0.554 3.274 0.847 0.904 G2 73.791 41.169 35.398 0.558 0.480 3.496 0.787 0.862 G3 84.285 54.624 37.843 0.648 0.449 3.507 0.811 0.928 G4 68.353 55.415 46.224 0.811 0.676 3.117 0.796 0.849 G5 62.311 57.968 48.701 0.930 0.782 3.048 0.808 0.858 G6 63.983 46.226 43.552 0.722 0.681 3.135 0.852 0.921 G7 77.504 48.492 37.44 0.626 0.483 3.436 0.800 0.921 G8 62.171 61.087 39.292 0.983 0.632 3.196 0.838 0.895 G9 61.726 58.954 40.825 0.955 0.661 3.150 0.820 0.884