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通过对以洛阳黄土加NaCl配成的盐渍土物理性质分析,利用压力板仪对不同含盐量、不同干密度、不同含水量的盐渍土在不同压力条件下的基质吸力和含水率关系进行试验研究,并根据试验结果,绘制盐渍土的土水特征曲线,进行比较,分析其变化规律,得出结论:(1)基质吸力随着含水率减小而增大;(2)土水特征曲线有交叉现象出现,即不同条件的试样基质吸力相同;(3)干密度对盐渍土基质吸力影响不大;(4)含盐量对盐渍土的基质吸力有一定的影响。
Based on the analysis of the physical properties of saline soil dubbed Luoyang loess plus NaCl, the relationship between the matrix suction and moisture content of saline soil with different salt contents, different dry densities and different water contents at different pressures According to the experimental results, the soil-water characteristic curve of saline soil was plotted, compared and analyzed. The conclusions were as follows: (1) The matrix suction increased with the decrease of water content; (2) Water characteristics curve cross phenomenon, that is, the same conditions of different sample matrix suction; (3) dry density of saline soil matrix suction little effect; (4) salt content of saline soil matrix suction to a certain extent .