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

图4 球模仪球形压头压入土中示意图

Fig. 4 Sketch of ball indenter pushing into soil of spherical template indenter