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对陕西蒲城电厂不同干密度试样的重塑Q2黄土微观结构进行对比测试,研究了重塑Q2黄土的微观结构特征。微观结构定性定量分析表明:随干密度增大,重塑Q2黄土孔隙的大小明显变小,而数量明显增多;微观结构定量参数随干密度的变化呈现较好的线性关系,随干密度增大,Q2黄土的灰度熵、欧拉数和孔隙的面积比例、圆形度、定向度、分布分维减小;而颗粒的面积比例、圆形度、定向度、分布分维将增大。相对于干密度相同的原状Q2黄土,重塑Q2黄土孔隙数目增多,颗粒和孔隙的圆形度增大。
The microstructure of Q2 loess remodeled by different dry density samples from Pucheng Power Plant in Shaanxi Province was compared and the microstructure characteristics of Q2 loess reshaped were studied. The qualitative and quantitative analysis of the microstructure showed that the pore size of remodeled Q2 loess decreased significantly with the increase of dry density, while the quantity increased obviously. The quantitative parameters of the microstructure showed a good linear relationship with dry density. With the increase of dry density , The gray entropy, Euler number and pore area ratio, circularity, orientation degree and distribution fractal dimension of Q2 loess decrease; while the area ratio, circularity, orientation degree and fractal dimension of Q2 loess will increase. Relative to the same dry density of the original Q2 loess, remodeling Q2 loess increased the number of pores, particles and pores increased circularity.