“The research team took the sandy loam soil in the Yellow River Basin of Hohhot, Inner Mongolia as the object, calibrated the key parameters of the EEPA model through the angle of repose test, and constructed a multi-body dynamics discrete element method bidirectional coupling model of 12.4 R24 herringbone tire sandy loam soil. The model was verified by soil trough experiments, achieving a unified description of tire dynamics response, soil parameter evolution, and compaction behavior, providing reference for optimizing agricultural tire tread parameters and regulating agricultural soil compaction.”