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论文基于试验研究了兰州附近地区原状黄土和重塑黄土的土水特征曲线。研究发现,原状黄土和重塑黄土的土水特征曲线与Williams模型比较接近。研究数据的拟合表明,体积含水量和基质吸力之间存在对数函数关系。但是,相对与原状黄土,重塑黄土因不存在结构性影响,数据离散性更小,规律更显著。并且利用不同干密度的重塑试样进行了干密度对黄土土水特征曲线影响的研究,结果表明基质吸力随干密度的增加线性增长。
Based on the experimental study of Lanzhou near the original loess and remolded loess soil water characteristics curve. The results show that the soil-water characteristic curves of undisturbed loess and remolded loess are close to those of the Williams model. Fitting the study data shows that there is a logarithmic relationship between volumetric water content and matrix suction. However, relative to undisturbed loess and remolded loess, there is no structural influence and the data is more discrete and the law is more pronounced. The effects of dry density on the soil-water characteristic curves of loess were studied using remodeled samples with different dry densities. The results showed that the matrix suction linearly increased with the increase of dry densities.