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本文依据土壤在重复加载条件下的变形特点,提出重复加载对土壤承压特性的“硬化”作用可通过在实际问题中调整土壤承压特性参数来加以考虑,并导出了相应的计算方法。经计算表明,这样处理能较好的反映土壤在重复加载过程中的实际变形情况。在此基础上,提出了刚性轮在松散土壤上重复通过对土壤承压特性参数以及后续车轮的下陷量、滚动阻力的计算方法。计算结果表明,理论值与实测结果具有良好的一致性,从而为深入系统的研究并解决重复通过问题提供了一个新的途径。
Based on the deformation characteristics of soils under repeated loading, this paper proposes that the “hardening” effect of repeated loading on the bearing properties of soils can be considered by adjusting the bearing properties of soils under practical problems, and the corresponding calculation methods are derived. The calculation shows that this treatment can better reflect the soil in the process of repeated loading of the actual deformation. On this basis, the calculation method of the bearing capacity of the rigid wheels on the loose soil and the rolling resistance of the subsequent wheels are proposed. The calculated results show that the theoretical values are in good agreement with the measured ones, which provides a new way for further systematic study and resolution of the problem of repeated passage.