Characteristic of shrinkage of claywith different consolidation hysteresis and prediction of skeleton structure

(1)如果土样的大小、真空度和初始含水率不同，则每种土的体积收缩(绝对干燥状态)后的最小孔隙率几乎相同。(2)重组粘性土的收缩和减饱和特性可以分别用两条直线表示。所需参数仅为e_min或w_s，与试验结果的一致性很高。(3)对于每个初始含水率，w-V/V_0与w_0和gt；w_p(w_p：塑性极限)、sr和e的关系可以线性近似。在w_0中

(1) The minimum void ratio after volumetricshrinkage (absolute dry condition) is almost the same for every kind of soil, if the size, vacuum pressure and initial water content of soil specimen differ from each other.(2) Shrinkage and desaturation characteristics of reconstituted cohesive soil can be formulized in two straight lines, respectively. A required parameter is only e_min or w_sand the compatibility with test results is high(3) The relation of w-V/V0in initial water content w_0>w_p(w_p: plastic limit), Sr, and e can be approximated in linear for every initial water content. In w_0