冻融循环作用下砂土粒组变化的分形特征及其与长期强度的相关性分析
刘启, 张泽, 张圣嵘, 恽晴飞, 付峻松

Fractal characteristics of sand grain group changes under freeze-thaw cycles and its correlation with long-term strength
Qi LIU, Ze ZHANG, Shengrong ZHANG, Qingfei YUN, Junsong FU
表1 不同冻融循环次数下砂土的分形维数
Table 1 Fractal dimension of sandy soils under different number of freeze-thaw cycles
土样冻融循环次数拟合方程确定系数R2DB
FS4y=-1.337x+11.6570.991.337
6y=-1.441x+12.0530.991.441
10y=-1.635x+12.9700.991.635
50y=-1.408x+12.9640.991.408
100y=-1.571x+12.5620.991.571
MS4y=-1.491x+12.3650.991.491
6y=-1.595x+12.6500.991.595
10y=-1.707x+12.0680.991.707
50y=-1.638x+12.9140.991.638
100y=-1.540x+12.5410.991.540