To explore the factors affecting the shear strength of compacted loess, direct shear tests and compression tests under different moisture contents and compaction were conducted. The results show that the angle of internal friction and the cohesion of the soil depend on the moisture content and compaction. The influence of the moisture content is more significant than that of the compaction. The relationship between the confined compression strain and vertical pressure can be fitted by a hyperbolic curve. The secant modulus has a positive linear relationship with the compaction, and a parabolic correlation with the moisture content. A modified formula for the deformation of loess under changing compaction and moisture content is presented.

为探讨影响压实黄土抗剪强度的因素，进行了不同含水量和压实度的直接剪切试验和压缩试验。结果表明，内摩擦角和土壤的内聚力取决于水分含量和压实度。水分含量的影响比压实的影响更大。约束压缩应变与垂直压力之间的关系可以通过双曲线来拟合。割线模量与压实度呈正线性关系，与水分含量呈抛物线相关性。提出了改变压实度和含水量的黄土变形公式。