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采用侧限压缩实验,对相同干密度、不同含水率的重塑黄土进行压缩固结实验。借鉴原状黄土湿陷性的研究方法,分析了含水率对于重塑黄土的变形影响。结果表明:低含水率时,孔隙比随应力的变化近似为线性、割线模量随应力的变化表现明显的非线性、应变速率衰减得快;高含水率时,孔隙比随应力的变化表现为明显的非线性、割线模量随应力的变化近似为线性、应变速率衰减得慢。
The compression experiments of the remolded loess with the same dry density and different moisture content were carried out by using the confinement compression test. Using the research method of intact loess collapsibility, the influence of water content on the deformation of remolded loess was analyzed. The results show that the void ratio changes linearly with the stress when the water content is low, and the secant modulus changes nonlinearly with the stress. The strain rate decays rapidly. When the water content is high, the void ratio changes with the stress For obvious nonlinearity, the secant modulus changes linearly with stress, and the strain rate decays slowly.