本文根据土壤和固体界面相互作用时能量的变化,分析土壤粘附和摩擦的机理,并且通过试验,研究粘土对固体材料的粘附和摩擦性能随土壤含水量、正压力,材料表面性质等因素的变化关系。从试验资料可看出,土壤对固体材料的粘附和摩擦的规律不完全相同。 In this paper, the mechanism of soil adhesion and friction is analyzed based on the change of energy when the soil and solid interface interact with each other. And the adhesion and friction properties of clay to solid material are studied with the factors such as soil moisture content, positive pressure and material surface properties The relationship between the changes. As can be seen from the experimental data, the laws of soil adhesion and friction to solid materials are not exactly the same.