根据重复加载不改变沙土的极限承载能力以及重复通过时作用在车轮上的土壤推力基本不变的试验结果,借助于M G Bekker建立的“压力—沉陷”和“剪切一位移”方程,提出了车轮重复通过条件下的沙土承压及剪切特性参数的预测方法。由于综合考虑了车轮重复通过对沙土承压及剪切特性的影响,应用文中提出的方法可更准确地模拟多轴轮式车辆在沙土上的牵引通过性能以及各轮轴的实际受力情况。 Based on the experimental results that the repeated loading does not change the ultimate bearing capacity of the soil and the soil thrust acting on the wheels when passing repeatedly, with the aid of the “pressure-subsidence” and “shear-displacement” equations established by MG Bekker, Prediction method of bearing pressure and shear characteristics of sand under repeated passage of wheels. Considering the influence of repeated wheel passing on the pressure and shear characteristics of sandy soil, the proposed method can be used to simulate the traction performance of multi-axle wheeled vehicles more accurately and the actual stress of each axle.