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在对水田机械机动性有影响的诸因素中,以水田土壤的性质最复杂和最难掌握。本文根据对湖北水田土壤下陷室内的试验结果分析了土壤的流变性质以及影响土壤流变参数的因素。基于粘弹性转换原理,文中对下陷流变模型建立阐述了两种不同方法并提出了一个四元件模型。试验表明该模型对于工程应用是足够精确的并提供了流变计算的土壤参数。
Of the factors that affect the mobility of paddy fields, the nature of paddy soils is the most complex and difficult to grasp. In this paper, the soil rheological properties and the factors affecting the soil rheological parameters were analyzed based on the experimental results of the soil subsidence chambers in Hubei Province. Based on the principle of viscoelasticity conversion, this paper expounds two different methods for the establishment of subsidence rheological model and proposes a four-element model. Tests have shown that the model is sufficiently accurate for engineering applications and provides rheologically calculated soil parameters.