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5月25日本文研究农业土壤被压实时的应力、应变和塑流特性。应用“精确喷印网格法”得出了各种压实情况下的土壤压实图型,找出了圆盘压实下土壤各点的应力、应变和塑流特性与三轴实验所得的土壤的应力、应变和塑流特性的关系;提出了圆盘压实下土壤中存在有土核、塑流、第三区三个性质不同的区域;并在此基础上探讨了轮胎下土壤被压实的特点。
On May 25th, the paper studied the stresses, strains, and plastic flow characteristics of agricultural soils. The soil compaction patterns under various compaction conditions were obtained by using the “precision jet printing grid method”, and the stress, strain, plastic flow characteristics and triaxial tests at various points in the soil under disc compaction were found out. The relationship between the stress, strain, and plastic flow characteristics of the obtained soil; the existence of soil nucleus, plastic flow, and three different areas in the third zone under the compaction of the disc is proposed; and on this basis, the tire is discussed under the tire The compacted nature of the soil.