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从土壤—水系统中粘土颗粒群的性质出发，进一步分析了土壤颗粒群的孔隙结构及其毛细孔道产生的抽吸力，研究了土壤对触土部件表面的粘附过程。结果表明：土壤粘附除了毛细管力、水膜粘滞力及初级化学键力外，粘土颗粒堆积形成的毛细孔道产生的抽吸势对土壤在触土部件表面的粘附有一定的贡献。压力及固体表面热力学因素的共同作用是粘附过程中土体表层颗粒重排及水分再分布的主要原因。
Based on the properties of clay particles in soil-water system, the pore structure of soil particles and the suction force generated by capillary channels were further analyzed, and the adhesion process of soil to the surface of clay parts was studied. The results show that in addition to the capillary force, the water film viscosity and the primary chemical bond force, the soil suction adsorption force induced by the capillary channel formed by the accumulation of clay particles has a certain contribution to the adhesion of soil to the surface of the clay member. The combined effect of pressure and solid surface thermodynamic factors is the main reason for particle rearrangement and redistribution of soil surface during the adhesion process.